Joseph, a trapper lives in the wilderness, with his wife Anne and daughter Renée. Joseph avoids civilization, and teaches Renée, skills handed down by his own father. But Anne longs for a normal life. When a wolf begins encroaching on his traps, Joseph sets out to kill it and finds the dumping ground of a serial killer; dead women in stages of decomposition. Instead of going to the police, Joseph sets out traps and waits for the killer’s return. After an encounter with the wolf, Anne barricades herself and Renée in the cabin to wait for Joseph’s return. When a stranger appears at her doorstep with a wound to his leg, Anne assumes the wolf had found another victim. She takes him in and nurses him back to health as they wait for Joseph’s return. When Anne sets out in search of her husband, she uncovers his fate and the truth behind the stranger. The truth comes too late to save Renee, and a revenge-crazed Anne teaches the murderer a painful lesson: there is a monster within everyone.