Lisa learns that her stepfather, whom she hasn’t seen in years, suffered a deadly fall down the stairs at the family home and that her estranged mother has been arrested for his murder. As she begins to investigate what happened, she discovers that not everything is as it seems.

A boy with an unhealthy and pathological attachment to his mother becomes increasingly jealous of the new man in her life. After his mother remarries, his rage and misery overwhelm him and he plots to kill his stepfather.

Rosario Tijeras has been abused by men all her life, initially by her stepfather. Years later, she works as a paid assassin, seducing men and killing them when they least expect it. She meets Emilio, a wealthy womanizer, and his best friend, Antonio, at a nightclub, and starts an affair with Emilio despite Antonio’s growing feelings for her. But circumstances bring her closer to Antonio, until her past catches up with her in a devastating way.

In Cameron, a group of hunters is attacked by a wild animal, and Charlie Cowley survives, but sees his brother Scott dying. Seven years later, his teenage nephew Derek Cowley steals the key of his stepfather’s cabin in the isolated Fire Road 13, and travels with four classmates and his friend Sam to spend the weekend having a party with booze and sex. However, they are attacked by a Beast that kills his friends in a sadistic way. Sam and Derek survive, and they suspect that his stepfather, Mitchell Toblat, is a werewolf. When Charlie meets Derek and Sam, they decide to collect evidence to prove that Mitchell is the Beast and kill him, but Mitchell discovers their plot and chases the trio.