The detectives only have three clues to work with including an unpublished manuscript, a missing computer file and a cat who knows the murderer. The clues point to three possible suspects who all live in the same building. Mallory starts baiting the killer with computer messages, but ends up becoming bait herself.
The detectives have only three pieces of evidence: an unpublished document, a missing computer file, and knowledge from a cat about the murderer. These clues suggest three possible suspects living in the same building. Mallory attempts to lure the killer through computer communications but instead becomes a target herself.