A group of friends get together thirty years after one of the group members died in a tragic accident while they were on holiday. What was supposed to be a relaxing vacation changes rapidly into a nightmare, when some of the friends are blackmailed with footage from that terrible week three decades ago.

When a heavily traumatised girl of African origin is found wandering around the polders of the border region between Flanders and the Netherlands, Tara, a Dutch police inspector from Rotterdam, and Bert, a psychiatrist from Antwerp, begin to investigate.

Eccentric criminal psychology Professor T is a successful police advisor but his unpredictable nature drives his colleagues crazy. He has a brilliant mind, but also several neurological disorders which make him a complex and often difficult individual. However, aided by the trusty and understanding Annelies and Daan they form a team of high-powered experts that Antwerp Homicide Department rely on.