Kakegurui
A gambling prodigy comes to an elite school run by games and turns the order upside down.
Pretty Little Liars
Four friends band together against an anonymous foe who threatens to reveal their darkest secrets, while also investigating the disappearance of their best friend.
Prison Break
A structural engineer installs himself in a prison he helped design, in order to save his falsely accused brother from a death sentence by breaking themselves out from the inside.