Task: Question Answering
Input (English): Passage: Set in the town of Wetherby in West Yorkshire, the film focuses on Jean Travers, a middle-aged spinster schoolteacher. One evening, she invites married friends for a dinner party, only to have some terrible repressions and past traumas dredged up when guest John Morgan expresses his emotional pain. The strange young man arrives at Jean's cottage the next morning with a gift of pheasants. While sitting at the kitchen table waiting for tea, he puts the barrel of a gun in his mouth and kills himself.
From this point onward, the film's story is told in chronologically discrete, interlocking flashbacks to the recent and distant past, showing actions and events as seen and experienced from various points of view. The central mystery of Morgan's suicide is the fulcrum around which the narrative turns. The narrative construction of the film resembles a jigsaw puzzle and, in keeping with Hare's style of exposition, frequently appears to have key pieces missing.
There are further scenes of the dinner party as well as scenes of the police investigation into the suicide. We learn Morgan had not been an invited guest—he walked in with others who assumed he was an acquaintance of Jean's, and Jean assumed that her friends had brought him with them. 
Question: What is the last name of the person who was assumed to be an acquaintance of Jean's?
Output (English): Morgan.