Sofia and Tomas are long-time friends and flatmates who share a fetish for decadent rituals. On a rainy night in the ominous city of Porto, the flatmates are joined by an immigrant in transit, Rayan, who is spending the night Couchsurfing at their flat. Rayan recoils into a silent spectator as he witnesses João - a bitter nihilist - break Sofia’s heart for dinner, only to find himself part of a ritual that seems to have been premeditated since his arrival to Porto.