Best-selling mystery author, David Forrester, is suffering writer's block. His publisher, Felix Bromley, suggests hiring a talented, beautiful young ghostwriter, Kristyn. This is the beginning of David's nightmare. The woman's suspicious behavior causes them to send a private investigator (Abromowitz) to dig up her past. It seems she is probably the sister David never knew he had. Added to this is that David's wife, Sylvia, leaves him to sue for divorce. His ghostwriter (maybe sister) begins making sexual advances while brandishing a kitchen knife. Later, he learns Sylvia has been murdered. Things reach the boiling point when they find the private detective has been killed right on the premises. David decides that one of them (not him!) is the murderer. The ending reveals the murderer and the last 90 seconds of the play has a final surprise that turns everything that has happened before delightfully upside down! One interior set. Approximate running time: 2 hours.