 An amateur needed several attempts to kill by knife-cuts teenagers Nele Somers and her new lover Wouter Palfeijn, in the custody of his divorced rich Antwerp father Rob Palfeijn, who blames himself for giving his boy too much freedom. Nele s friend suspects her ex Koen Naessens, but he tailed Wouter and saw him committing infidelity. Despite his wife Hilde s reservations, young father Simon Knops now accepts to go undercover again as Simon Peter Vermeiren, hoping to become lover-boy for an Antwerp crime gang which lures girls into prostitution, but is send back to his home town Boom, where the recruiter says a girl was recently lost, to look for truant blonds. He easily picks up 17-year old Lisa Typpens and learns Wouter was in the gang, but is forced to use drugs, sees lover-boy Claude brutalized and arouses the supervisor s suspicions...