This very deft take-off on the long-running TV sitcom captures the show’s zany, hyper-ironic, off the wall humor its fans seem to love.

James Deen as “D.J.” nails the character’s quizzical, slightly dopey innocence. In a flashback to his med school days, we see him in a three-way with Alexis Texas and Joanna Angel, with some high-chemistry anal sex between him and frequent partner Angel.

Ralph Long is funny as “The Janitor,” D.J.’s freaky nemesis who seems irresistible to the nurses — Missy Stone plays the one who snags him. Tori Black looks glamorous and sleek as “Jordana,” ex-wife of senior physican “Barry,” well-played by Jack Lawrence. The bickering couple have another good sex scene.

The pleasant surprise is Shane Diesel, whose acting — let alone comedy — skills have rarely been put to the test. As D.J.’s buddy “Dirk” he tosses off his one-liners with the requisite cool and, of course, delivers sexually too. Thea Marie, as his Latina girlfriend “Marla,” takes his monster cock easily.

Ashlynn Brooke, deglamourized as a working nurse but still beautiful and hot, plays D.J.’s love object. She’s in the final three-way with Deen and a bandana-headed Kris Slater as wise-ass physician “The Tedd.” The scene, and movie, has a terrific punchline.

The direction by Lee Roy Myers is expert. The camera setups and framings, the jump cuts and sfx gags, are spot-on imitations of the constantly surprising "Scrubs" style. And he clearly knows how to get the best out of his actors — there’s not one wrong note.

This parody, in fact, looks so much like a real sitcom that it sets one to musing about what an actual TV show with hardcore sex would look like.