There’s plenty of trouble—along with some laughs and wise insights—in these four vignettes on sex and relationships, set in rooms in the same hotel. In “Dumped” the misunderstood conversation that leads to a breakup is characteristic of male-female miscommunication. In “Banged” a girl’s hallucinations of her ex during sex and after convinces her new lover that she’s nuts. “Love” shows a guy’s encounter with a surprisingly caring high-priced hooker. The performances are convincing, and director Gene Rhee does a good job of outlining the messiness of human affections here, showing how we don’t always know what we really want or how to get it. 88 min.