The Black Room (1982)

Overview

An unfaithful businessman seeks a discreet escape and rents a spare room from a seemingly innocent pair of siblings. As he invites various women for his clandestine affairs, he remains oblivious to the deadly secret lurking beneath their hospitality. The siblings, driven by a sinister agenda, have a chilling pattern of eliminating every woman who crosses their threshold. Tension mounts as the unsuspecting businessman becomes entangled in a web of deceit and violence, leading to a shocking confrontation that reveals the true nature of his hosts.