A pilot returns from the dead after eight years as Father brown is about to marry his wife to his brother. No one, except his daughter, is pleased to see him; especially his father who believes him to be a deserter. When he is found shot in the head, Inspector Mallory charges his wife after blood stained women's clothing are found; while the daughter's claims another woman entered the house are dismissed. Father Brown finds a visiting card for a cross-dressing bar and realises who the real killer is and that they cannot be exposed.