Inspired by the novel "Tenebra" by David Pratelli, the film revolves around a mysterious killer who begins killing women and leaves a message: This is my revenge.

Piuma, a failed cartoonist, lives in a small, dirty, and messy studio apartment with his dog, a German Shepherd named Piuma. The boy and his dog live practically in symbiosis, but after failing to pay the rent for over three months, they are evicted. Along the way, they meet Sophie, a very tense and pensive young woman.