De Cock and his team investigate the death of a man who appears to have hung himself after winning the lottery. It turns out to be murder, and lots of greedy people from the neighborhood are suspects. With Prins' replacement still not present, the team is understaffed, and Peeters fills in.
De Cock and his team investigate the murder of a criminal junkie, and are troubled by indifferent reactions from the man's family and friends. Iris de Graaff is Prins's replacement, and Vledder and Keizer have some doubts when they discover that she had a burn-out after being involved in a hostage crisis a year ago, and has just returned working.
Croatian 'Ludoslav' Marcovic is found in an Amsterdam canal, not drowned but shot. Touristic canal boat captain Leo Koers was poisoned by pure ricine-injection during a city visit. Tour company director Katherina van de Heuvel, one of Leo's flirts along many guides, probably was the one who confided to Leo a fortune to invest from as Swiss account. Visiting NYPD chief inspector detective Jack Feretti claims all Dutch crimes are drug-related. De Cock's theory something can literally not be overseen leads to chemistry student Harry Koenraad.
De Cock and his team investigate a murder where the key witness is a deaf woman training for a marathon. The culprit is quickly caught, but De Cock has doubts, and discovers that the man has been elaborately set up.