It's good to see that Bruce Seven's work is back in the saddle after screwing around, by knocking out a few cheapos that did little to further his reputation. The hallmark of a solid Seven production is that he mixes sensuality with raw sexuality giving his characters real sexual motives and responses. Fusing this with aggressive use of jump cuts within a scene and intercutting with other scenes, he has the ability to give us non-stop sex films that might not be destined to be classics but do serve as effective turn-ons that never turn into time wasters.
There are a lot of similarities between this movie and the 1967 release, Guess Who's Coming to Dinner. There are also a few differences, enough in fact that this could have been called Guess Who's Coming At Dinner. Harlequin Affair, like its predecessors, covers the topic of interracial marriage with Sahara handling the Sidney Poitier role, using considerably more sex and sex appeal. Unlike its predecessor, Harlequin Affair has Traci Lords merrily making it with everyone in sight.
All told, this is a sturdy sex film where everybody makes it with everybody else. It gets it up, keeps it wet and comes to a satisfying conclusion.