Take her, she's mine (1963)

After reluctantly packing up his daughter, Mollie, and sending her away to study art at a Paris college, Frank Michaelson gives new meaning to the term "concerned parent." Reading Mollie's letters describing her counter-culture experiences and beatnik friends, Frank eventually grows so paranoid that he boards a plane to Paris to see firsthand the kind of lessons his daughter is learning with her new artist amour.