Triple bill of British crime dramas. In 'The Twenty Questions Murder Mystery' (1950) a killer sends clues to his crimes into the BBC panel show 'Twenty Questions'. While the celebrities on the panel try to solve the murder mystery, reporters Bob Beacham (Robert Beatty) and Mary Game (Rona Anderson) try their best to uncover the killer's identity. In 'Shadow of a Man' (1956) a man is found dead outside a nightclub due to what is deemed to be a heart attack. However, the police later reopen the investigation when they suspect it could have been a case of murder. In 'Inside the Room' (1935) a French detective investigates two murders where diary pages have been found at the crime scene. In 'Blackout' (1950) Chris Pelly (Maxwell Reed), who is temporarily blind, inadvertently witnesses a murder. When his sight is eventually restored, he sets about finding the culprits but learns the police aren't so eager to help.