De dwaze lotgevallen van Sherlock Jones (1975)

The Karthoum diamond, worth 2 million Dutch Guilders and renowned worldwide, is being transported from Pretoria to the Netherlands for museum exhibition. Director Sondag is concerned about its lack of protection and hires a private detective, however, unbeknownst to him, Italian mobsters are planning a jewel theft and manipulate Sondag into hiring the inept Sherlock Jones. Ironically, Watson, Sherlock's basset hound, is more perceptive of the situation.