Late one night, Brenner goes to Alison's building, while inside Alison is again awakened by strange noises, and encounters the animated, rotting corpse of her recently deceased abusive father in the stairwell. She escapes by stabbing him and, covered in blood, runs screaming into the street, arousing the whole neighborhood. Alison is hospitalized with a nervous breakdown, and two police detectives, Gatz and Rizzo, begin an investigation. Gatz and Rizzo suspect that Michael murdered his former wife, who fell to her death after refusing to divorce Michael so that he could marry Alison. The detectives find no body in Alison's building, the blood on her matches her own blood type, and her father is confirmed to have died three weeks previously. However, they later find Brenner's stabbed body dumped elsewhere, and his blood type also matches the blood found on Alison, suggesting that Alison might have murdered him. Gatz and Rizzo also discover that the people Alison claimed she saw at the cat's birthday party are all deceased murderers.