Simone and Sipowicz investigate the murder of a woman whose body was found naked in the trunk of a car in a junkyard. Gina returns to work. A man's body is found with a severe blow to his head. James and Greg eventually discover that the murder weapon was a typewriter. But how and who delivered the blow? Bobby hires Henry to take care of a painting job in the tenement building; Henry comes in complaining about the difficult tenant. Diane is working through her issues with her family and a counselor. Bobby and Henry talk with the difficult tenant.