A young medical student observes his neighbour's love life through a hole in his apartment wall.
Detectives Grijpstra and De Gier are sent to investigate the case of a man who apparently hanged himself in a center for oriental meditation. It is ruled as suicide and the case seems to be closed, but the same night there is an attempted break in. The investigation hits a dead end and everyone involved is a suspect. Based on the book "The Corpse in the Haarlemmer Houttuinen” by Jan-Willem van de Wetering.
A large sugar concern wants to take over the ailing sugar factory of the Rustenburg family. A fierce battle ensues and plans are hatched to depose the factory's director.
