Secret Agent (1936)

World War 1. Novelist Edgar Brodie is shocked to discover that, according to the newspapers, he has died. This turns out to be a cover for a clandestine operation British Intelligence has for him. As Richard Ashenden he is to go to Switzerland to track down and eliminate a German agent who is undermining British operations in the Middle East. When he gets to his Swiss hotel he discovers that there's a Mrs Ashenden and she's in his room.