Survival Knife (2016)

SURVIVAL KNIFE picks up where the typical Hollywood slasher film ends. Penny (Danielle Donahue) is the sole survivor of a vicious attack that killed five of her closest friends. To escape she was forced to brutally kill her wouldbe murderer. As she begins the slow process of recovering both physically and mentally, she struggles to deal with both the violence that happened to her, and the violence she committed herself.