Upon their arrival in London, a retired vicar and his wife are disturbed to find that their son, Gerald Neil, who they had planned to visit, has, without notice, sold all his belongings and gone to live in Paris. Eager for news and an explanation, the two send word to Paris and, when no reply is received for several weeks, Reverend Neil decides to travel to Paris and find his son. The search proves fruitless and, when Scotland Yard exhaust every avenue of enquiry, Mr. Gerald Neil is filed away under "Missing Person" seemingly having vanished into thin air. A few days later the Reverend's wife is woken in the middle of the night by a vision of her son's murder - can the grisly dream find the key to finding her son?