Marie the Doll (1976)

Marie who was orphaned as a young girl has a case of arrested development that makes her act younger than her age One day she stops to look in a store window displaying various ornate dolls Claude the affluent eccentric 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 Claudes bizarre obsession with dolls decides to marry him