

Season 1 • Episode 3
LatestThe London fashion photographer Eric Martin expects his brother Philip Martin to return from Germany after a longer period of military service. When he arrives, Philip Martin reports an accident in Hamburg. He should bring items from the victim's wife to Dublin. However, Philip Martin behaves strangely, so that Eric Martin doubts the story. In fact, his brother travels to the Royal Falkon Hotel in Maidenhead and rents a room there.
Writing
Francis Durbridge's trademark slow-burn plotting.
Acting
Albert Lieven's understated, morally slippery Inspector Hyde.
Production
Crisp black-and-white London locations dripping with unease.
Creator
Francis Durbridge
Trivia, insights & behind the scenes
Francis Durbridge dominated British television mystery in the 1960s; this German-British co-production shows his formula crossing borders.
The title 'Die Schlüssel' ('The Keys') refers to multiple literal and metaphorical keys — hotel keys, car keys, and the key to unlocking Philip's deception.