Five married men secretly share a loft in the city, a place where they can carry out extramarital affairs without fear of being caught. Vincent, who suggests and arranges the loft, convinces his friends Chris, Luke, Marty, and Phillip to join in and each is given a key. Their seemingly perfect escape takes a dark turn when they discover the body of an unknown woman in the loft, sparking a panic among the group.

Amid rising tensions, the friends begin to suspect each other of murder while simultaneously fearing exposure of their infidelity. As they dig deeper to uncover how the woman ended up dead and who she is, the secrets they kept hidden from one another start to unravel. The narrative shifts between their present predicament and past events leading up to the deadly discovery, creating a suspenseful web of betrayal, deception, and sinister motives that leave them questioning their trust in one another.