The big end-of-term play is approaching. Tobias is somewhat anxious, but with Mees Kees at the helm, everything should be just fine. The class looks forward to rehearsing in the afternoons and to making beautiful scenery - until they find out that Principal Dreus has chosen a terribly boring medieval play. Moreover, it is to be staged in a dusty room within a nearby retirement home. But Mees Kees wouldn't be Mees Kees if he didn't put his own twist on things...

When star soccer player Edwin Kuijpers is found dead on the center spot of the Amsterdam Arena, it is a stab in the heart for all Ajax fans, and especially for Vledder. He is therefore more determined than ever to assist De Cock in the investigation behind the scenes of the popular football club. They discover that the victim was about to transfer to a club in England. Could jealousy be a factor, or is there more to it than that? De Cock proves himself to be a skilled referee with a keen eye for detail. Just as calm seems to be returning to Ajax circles, a second death occurs. This time, it appears to be suicide, but De Cock refuses to be deterred.

After the death of her husband, an elderly widow rediscovers her vitality and romance when she falls in love with a fellow nursing home resident.