Agatha Christie - Murder in Mesopotamia - BBC full-cast dramatisation

Amy Leatheran is traveling in Iraq when she meets Mr.Rydner who asks her if she can look after his wife who says she is very frightened by all these happenings in the night like a tap on the window, and the face with no body. After thinking about it she decides to take the job. Very weird happenings start happening once she arrives including some sounds in the antiques room and a strange man seen by Amy and Mrs. Rydner looking through the antiques room window. He is later found talking to Mr. Lavingi. Then Mrs. Rydner is found dead in her room with a blow to the head. Her husband found her. Then Mr. Riley (The Doctor) decides to invite an old friend Hercule Poirot who is passing through the region to help solve the murder…