A man leaps from Olshansky's cab only to be shot moments later.
The man survives the attack, but then vanishes from the hospital after a suspicious conversation with his best friend and personal physician. Soon thereafter, Olshansky is summoned by Celia (Jane Krakowski), the wife of the missing man to help find her husband.
Celia informs Olshansky that her husband has an inoperable brain tumor and the attempt on his life was actually arranged by her husband, to avoid subjecting them both to his slow, painful death.
Olshansky agrees to help, however, the case becomes more complicated when he discovers that the wife is having an affair with her husband's physician.