Nero Wolfe, an avid orchid collector, a great gourmet, a beer lover and a great detective, almost never leaves the house. He unravels all the crimes based on the facts collected by Archie Goodwin, his charming, ironic assistant with an excellent memory. In an elite chess club, during a simultaneous game, talented chess player Paul Jerin is poisoned, and suspicion falls on one of the participants. However, his daughter is confident in her father's innocence and asks Wolfe to find the real killer.