Lars and Alfhildr have a new main suspect in the Tjuvholmen murder: a rich entrepreneur from the Stone Age.

When Lars's daughter is involved in a mysterious accident at sea, Alfhildr has to seek Norse help to continue the investigation.

The hunt for the Tjuvholmen killer is coming to an end, and Alfhildr must face a hard truth.

Alfhildr and Lars reunite for a murder case that raises the question: could Jack the Ripper have timeigrated to the present?