During demolition work in a village in northern Germany, a cemented-in corpse is discovered in the wall of a building. The autopsy leads the pathologist to conclude that the man suffocated in the cement. The identity of the dead man comes as a surprise to the two detectives on the scene: it is Michael Lehmann, who has been missing for 16 years. He was suspected of having sexually abused and murdered a nine-year-old boy from the village.

Michael Mendl
as Kommissar Hagen Dudek

Anna Maria Mühe
as Simone Westermann

Frank Giering
as Kommissar Klaus Wendt

Devid Striesow
as Ralf und Frank Gerlach

Rosa Enskat
as Jeanette Lehmann

Rainer Piwek
as Bauleiter

Brigitte Böttrich
as Sigrid Brehm

Rainer Reiners
as Matthias Krüger

Susanne Schäfer
as Agnes Sonntag

Armin Dillenberger
as Horst Schlottmann