Cath and Erik have an inconsolable neighbor Siebe whose wife has left him. Piet then invites the neighbor to stay until he is over his grief, with all the consequences that entails.
Cath and her friends hold a "Third World Evening" while Piet and his friends disrupt it. Fortunately Willemien has a vitamin preparation that gives Piet more energy.
Piet tries to get the bill from the garage for Cath and Erik to find it while Cath tries to prevent Erik from finding her ex-boyfriend Mark in their hotel room.