Nielsen and he finds new courage which in the following novels plays an important role. Characters Beck meets Rhea Nielsen, and it is love at first sight, sort of, in slow motion. Contrary to his ex-wife, she is a no-nonsense left-wing type of person and his intellectual equal. Criminal mastermind Werner Roos and bank robbers Malmström and Mohrén are introduced, as is their ineffectual but successful Nemesis, public prosecutor 'Bulldozer' Olsson. Police officer Kenneth Kvastmo is introduced to replace Kurt Kvant as Police officer Karl Kristianssons partner. Film adaptation The book was adapted by Dutch filmmaker Jacob Bijl as De gesloten kamer in 1993. In this film, the action is set in Antwerp and Beck is played by famous Belgian actor Jan Decleir. Most of the other characters were renamed to match the new setting; for instance, the name of Beck's colleague Kollberg was changed to Colbert. References Novels by Sjöwall and Wahlöö 1972 Swedish novels Swedish detective novels Locked-room mysteries Pantheon Books books Norstedts förlag books Bank robbery in fiction