Marie, the Doll (1976)

Marie is a 17-year old who was orphaned as a young girl. as a result, she has a tad of arrested development that makes her act much younger than her age. One day she looks in a store window displaying various dolls. Claude the affluent store owner, sees her and becomes infatuated which leads to her and him meeting and deciding to go and take a look at Claude personal doll collection at his house. Marie unaware of Claude unhealthy obsession with dolls, decides to marry him.