Based on true-life events during the Cold War The Inside Man is a gripping thriller of espionage and betrayal on an international level. A joint American/Swedish project has perfected a submarine tracking device which was stolen during a violent raid and there is no shortage of suspects. The Swedish Secret Service believe the best way to locate the device is by using an undercover agent in the guise of Thomas Kallin, a young marine who has no idea what he is getting himself into.