The movie opens with Kira Mabon enjoying a night out with her boyfriend, Jonas Swierczynski. After spending the night together, Kira wakes up to find Jonas gone and struggles to reach him. Carefree, she leaves his apartment and calls her friend Martha to share details about their date. However, Martha abruptly hangs up, suggesting skepticism about Kira's story. Confused, Kira unexpectedly finds herself back at Jonas’s building. When she enters his apartment, it feels eerily familiar, with furniture and items that seem to belong to her, hinting at a deeper, unsettling connection to the place.