1980 film by Jean-Pierre Desagnat

Dr. Brézé and his sons, all surgeons with limited abilities fight any competition on their sector with all means.

A man witnesses a suicide and starts imagining that it was a murder committed by himself.

Leon Rollo whose nickname is "Patate" is an inventor adored by his wife and is daughter. He is mostly happy but his best friend Noël seems to succeed in everything he undertakes... Patate become increasingly jealous of this incredible luck.