Man About the House (1973)

The morning after a particularly wild party, Chrissy and Jo wake up to find Robin sleeping in their bath. He needs a place to live and they need a flatmate who can cook, so they decide to let him live with them. Robin is convinced he's in with a chance with both of them, but he never seems to quite manage to impress either woman enough so they'll go out with him. Further ruining his chances is the dampening presence of landlord George Roper, who lives downstairs with his wife Mildred.