Backrooms is Kane Parsons’ feature debut, adapted from his YouTube series and presented as a liminal horror built around an infinite maze of office-like rooms and hallways. Multiple reviews describe the film as concept-driven, using escalating dread and unsettling visual distortions to explore themes of memory, reality, and fear. The story follows Clark (Chiwetel Ejiofor), a failed architect and struggling alcoholic who runs a dreary discount furniture store, and Mary (Renate Reinsve), a therapist who sells self-help audio tapes and is haunted by childhood memories of abuse. In each account, Clark becomes trapped or disappears into an extra-dimensional space, prompting Mary to enter the unknown to find him, even as the environment seems to multiply and “feel askew.” Critics consistently highlight the performances of Ejiofor and Reinsve and note that the film’s first stretch can test viewers’ patience as it establishes its rules and atmosphere. While reviews generally agree that the premise is intriguing and unsettling, they also suggest the film does not fully satisfy all expectations, with one outlet characterizing it as creepy but underdeveloped.