This suspenseful thriller by Bo Widerberg (Man On The Roof) is based on a novel by Leif G.W. Persson about two plainclothes detectives out to solve a robbery and some murders that appear to involve a corrupt government minister. The police inspectors' suspicions increase when some authorities start blocking their investigation. The setting is Christmastime in Stockholm, and as the two detectives brave the cold, their time-honored techniques of surveillance and a few chases add to the building suspense.
~ Eleanor Mannikka, All Movie Guide