Apartment 1303 (2007)

Plot

After a lively gathering with friends in her budget-friendly thirteenth-floor apartment, Sayaka takes a tragic plunge off the balcony, ending her life. The shocking event drives her mother into madness, leaving her older sister, Mariko, determined to uncover the truth behind Sayaka's mysterious death. As Mariko digs deeper into the unsettling occurrences surrounding the apartment, she confronts chilling secrets that threaten to unravel her own sanity. The journey leads her through a haunting investigation, where the line between reality and the supernatural blurs.