Jasper gets a very particular challenge. Jitske, a girl with Down Syndrome, claims she knows who killed her mother. Jasper is only allowed to ask her one question, which she will answer truthfully. Annelies is not very subtle around Jitske. John thinks it's necessary for her to meet his daughter. Christina finds the role of team-leader is rather different from being a commissioner. Besides that, she also has personal problems to deal with.

The Universtiy of Antwerp organizes the yearly congress of criminologists. To Jasper's bewilderment he's only the second speaker and he won't open the congress. When the first speaker gets killed, all eyes are fixed on the professor. Christina finds new joy in her life after her divorce. She introduces her new boyfriend, a colleague from the drug squad. Annelies confesses to John she burnt her father's living will.