Pay close attention, and you might solve this. On Monday afternoon five students at Bayview High walk into detention. Bronwyn, the brain, is Yale-bound and never breaks a rule. Addy, the beauty, is the picture-perfect homecoming princess. Nate, the criminal, is already on probation for dealing. Cooper, the athlete, is the all-star baseball pitcher. And Simon, the outcast, is the creator of Bayview High's notorious gossip app. Only Simon never makes it out of that classroom. Before the end of detention, Simon's dead.

Echo Ridge is small-town America. Ellery's never been there, but she's heard all about it. Her aunt went missing there at age 17. And only five years ago, a homecoming queen put the town on the map when she was killed. Now, Ellery has to move there to live with a grandmother she barely knows. The town is picture-perfect, but it's hiding secrets. And before school even begins for Ellery, someone has declared open season on homecoming, promising to make it as dangerous as it was five years ago. Then, almost as if to prove it, another girl goes missing.

Four years ago, Brynn left Saint Ambrose School following the shocking murder of her favorite teacher—a story that made headlines after the teacher’s body was found by three Saint Ambrose students in the woods behind their school. The case was never solved. Now that Brynn is moving home and starting her dream internship at a true-crime show, she’s determined to find out what really happened.

Ivy, Mateo, and Cal used to be close. Now all they have in common is Carlton High and the beginning of a very bad day. So when the three unexpectedly run into each other, they decide to avoid their problems by ditching. Just the three of them, like old times. Except they’ve barely left the parking lot before they run out of things to say...until they spot another Carlton High student skipping school - and follow him to the scene of his own murder. In one chance move, their day turns from dull to deadly. And it’s about to get worse.

Milly, Aubrey, and Jonah Story are cousins, but they barely know each another, and they've never even met their grandmother. Rich and reclusive, she disinherited their parents before they were born. So when they each receive a letter inviting them to work at her island resort for the summer, they're surprised...and curious.

Eighteen-year-old Bel has lived her whole life in the shadow of her mom’s mysterious disappearance. Sixteen years ago, Rachel Price vanished and young Bel was the only witness, but she has no memory of it. Rachel is gone, long presumed dead, and Bel wishes everyone would just move on. But the case is dredged up from the past when the Price family agrees to a true crime documentary. Bel can’t wait for filming to end, for life to go back to normal. And then the impossible happens. Rachel Price reappears, and life will never be normal again.

Pip is not in the mood for her friend’s murder mystery party. Especially one that involves 1920’s fancy dress and pretending that their town is an island called Joy. But when the game begins, Pip finds herself drawn into the make-believe world of intrigue, deception and murder. But as Pip plays detective, teasing out the identity of the killer clue-by-clue, the murder of the fictional Reginald Remy isn’t the only case on her mind …

Blythe and her friends — Gabrielle, and brother and sister Tucker and Tanya — have always been a tight friend group, attending a local high school and falling in and out of love with each other. But an act of violence has caused a rift between Blythe and Tucker . . . and unexpected bursts of aggression and disturbing nightmares have started to become more frequent in their lives.

There are no more cheerleaders in the town of Sunnybrook. First there was the car accident - two girls dead after hitting a tree on a rainy night. Not long after, the murders happened. Those two girls were killed by the man next door. The police shot him, so no one will ever know his reasons. Monica's sister was the last cheerleader to die. After her suicide, Sunnybrook High disbanded the cheer squad. No one wanted to be reminded of the girls they'd lost.

Ellingham Academy is a famous private school in Vermont for the brightest thinkers, inventors, and artists. It was founded by Albert Ellingham, an early 20th century tycoon, who wanted to make a wonderful place full of riddles, twisting pathways, and gardens. "A place", he said, "where learning is a game." Shortly after the school opened, his wife and daughter were kidnapped. The only real clue was a mocking riddle listing methods of murder, signed with the frightening pseudonym "Truly, Devious".

For all of Kat’s life, it’s just been her and her mother, Jamie—except for the forty-eight hours when Jamie was married and Kat had a stepbrother, Liam. That all ended in an epic divorce, and Kat and Liam haven’t spoken since. Now Jamie is a jewel thief trying to go straight, but she has one last job—at billionaire Ross Sutherland’s birthday party. And Kat has figured out a way to tag along. What Kat doesn’t know, though, is that there are two surprise guests at the dazzling Sutherland compound that weekend. The last two people she wants to run into.

After the death of her mom (screw cancer), seventeen-year-old Cecelia Ellis goes to live with her estranged grandmother, a celebrated author whose Victorian mansion is as creepy as the murder mysteries she writes. On the surface, life is utterly ordinary in the California coastal town . . . until the homecoming queen is murdered. And she’s not Seaview’s first pretty dead queen.

Alice Lawrence is the sole witness in her sister’s murder trial. And in the year since Claire’s death, Alice’s life has completely fallen apart. Her parents have gotten divorced, she’s moved into an apartment that smells like bologna, and she is being forced to face her sister’s killer and a courtroom full of people who doubt what she saw in the corn maze a year prior.

Seventeen-year-old Cassie is a natural at reading people. Piecing together the tiniest details, she can tell you who you are and what you want. But, it's not a skill that she's ever taken seriously. That is, until the FBI come knocking: they've begun a classified program that uses exceptional teenagers to crack infamous cold cases, and they need Cassie. What Cassie doesn't realize is that there's more at risk than a few unsolved homicides—especially when she's sent to live with a group of teens whose gifts are as unusual as her own

It was supposed to be the perfect prom weekend getaway. But it's clear something terrible happened when Claire wakes up alone and bloodied on a hiking trail with no memory of the past 48 hours. Now everyone wants answers - most of all, Claire. She remembers Friday night, but, after that...nothing. And now Kat and Jesse - her best friends - are missing. What happened on the mountain? And where are Kat and Jesse? Claire knows the answers are buried somewhere in her memory. But as she's learning, everyone has secrets - even her best friends.