Deep in a wintry forest, an abandoned boy struggles to protect his little sister from an infection that turns people into a feral-like state, a ruthless militia leader searching for his missing daughter, and Government agents hunting them.
Recurring nightmares and the aftermath of a violent break-up have put Leni on edge. As she desperately seeks to regain her sanity she must confront her monsters in order to unravel the trauma of a past she doesn't seem to fully remember.