The small Greek village of Platanos (Plane Tree) buries the elderly recluse Vangelas and notifies the deceased's estranged children and grandchildren about his death. Vangela's will leaves 3 million euros to his family, but requires them to move to the village and obey certain terms in order to inherit.

A series of murders alarm the police authorities, as strange symbolisms are traced to every crime scene. The eccentric professor of criminology Dimitris Lainis is asked to shed some light on the mystery.