Way outdated plot (old-timers don't like the idea of boys and girls living together in the same house), brainless script, terrible songs that the producers apparently thought "the kids" would think was cool but definitely weren't, a bland leading man whose singing and acting are on the same level (lousy), chintzy production values (to be expected from a Lippert picture) and some of the unfunniest "comedy" bits (consisting mainly of old people tripping and falling down) in recent memory all combine to make this cheap "Beach Party" ripoff barely watchable. At least the "Beach Party" movies were shot in color so the audience would see nice shots of the beach and the ocean; this thing is shot in black-and-white, so the few scenes where you actually see the beach are bland and uninteresting.
Just about the only things this mess has going for it are Sherry Jackson, who was adorable as a child actress and grew up to be an absolute knockout; and a couple of shots of some cute girls running around a beach house in their nighties. That's it. Period.
Don't waste your time.