Adam Scott (“Parks and Recreation”) and Taylor Schilling (“Orange is the New Black”) recently moved to LA from Seattle, and they’re desperate to make new friends. Their luck seemingly turns around when they’re invited over for dinner by the parents of their son’s new friend—a warm, charming couple played by Jason Schwartzman and Judith Godrèche. Their “adult playdate” starts off simply enough, but wine, marijuana, and the hosts’ habit of oversharing details about their sex life takes things in an unexpected direction, as writer-director Patrick Brice ratchets up the tension to deliciously devilish levels. Containing one of the most memorably ridiculous nude scenes you’ll ever see, it’s either a 21st-century “Bob & Carol & Ted & Alice” filtered through the distinct sensibilities of exec producers the Duplass brothers, or a film with an overreliance on prosthetics sported by the male leads. This raunchy, trippy comedy earns its R rating.