Diego and Sage have fallen into a romantic rut despite the fact that Diego has recently quit his job to focus on writing an acclaimed erotic romance novel. Sole breadwinner Sage finds herself increasingly frustrated in the bedroom and resentful of her role as the supportive girlfriend. In an effort to reconnect, they rent a scenic lakeside property for the weekend on the aptly named Bone Lake. As they settle in, Will and Cinn bound through the door. Realizing the house has been double-booked, the two couples decide to make the best of things and spend their weekend together.