Toys Are Not for Children (1972)

Emotionally stunted child-like woman Jamie Godard not only suffers from an unhealthy fixation on her long absent father, but also has an obsession with all the toys he gave her as a little girl. After getting a job at a toy store, Jamie decides to marry co-worker Charlie Belmond. When the marriage doesn't work out, Jamie runs away to New York City and becomes a prostitute who specializes in servicing perverted old men who want to play daddy with her.