When a severed human hand is found at a weekend film festival, the actual cast and crew of the CRUEL SUMMER trilogy suddenly find themselves thrown into the middle of a real-life sequel engineered by an unhinged psychopath.

A group of college students plan one final pre-graduation party at a secluded lake house for an "80s murder mystery" weekend unaware that a crazed, masked killer has decided to join the celebration. Will anyone survive the slaughter - or is this going to become a truly cruel summer?

Heeding the advice of medical professionals, the traumatized survivors of a deadly vacation house massacre try to confront their own personal demons by organizing a stage production of their harrowing experience. But a familiar face is back for revenge - and determined to make sure these unsuspecting actors fade to black before their time.

Survivors of the bloody "theatre massacre" years earlier must fight for their lives as members of their psychiatric hospital's therapy support group begin falling prey to an unseen psychopath. Deep secrets are uncovered and old friendships are tested as they realize the killer may actually be much closer to them than they ever thought possible.

People lose loved ones in crimes and the criminals are not punished. The daily lives of these people are completely broken. They form a group to realize justice.

A young woman takes respite from her turbulent life and lands a job at a fire lookout tower, only to take a chilling turn when otherworldly phenomena begin to unfold.

Six young urbanites who haven't seen each other for four years spend the weekend together on the banks of the Yangzhe river to escape the hustle and bustle of Beijing city. However, even the solitude of their surroundings cannot stop old tensions from resurfacing between some of the characters. The air becomes especially charged when a friend of the six shows up without invitation. Now married and working as a policeman in a small town near Yangzhe river, the young man pines for Xiaobei, his old high school flame and one of the women in the group. But, the policeman's presence triggers feelings of jealousy in Xiaobei's fiance, leading to a troubling twist at the end.

A lonely man takes in a beautiful drifter for a weekend after discovering her dark secret.

Businessman Christian Vandenheuvel planned to spend the long weekend with his young mistress, Lisa. Instead, they're take hostage by Jos Diels and Nick, two of the 46 laborers who lost their job recently when Christian had his family film bankrupted. Each victim fails to escape, even the fire alarm doesn't get them freed. After Jos realizes the mistress is his only daughter, and Nick falls in love with Lisa, the masked men's mood evolves as they progress to truth time, when the police arrives.

An electric one-night-stand between Sylvia and Ethan is quickly derailed by a psychotic and possessive ex-lover who incites violence and provokes them to pursue a regrettable act of vengeance.