Caroline is a young, single interior designer navigating life in San Francisco, where she has been happily solo for a while. She finds what she believes is the ideal apartment, only to be disturbed nightly by her neighbor, Simon, humorously dubbed the “wallbanger.” The noise from his apartment is impossible to ignore, and the tension between them grows as the walls between their lives feel more like paper than concrete. As Caroline grapples with her frustration, she begins to realize that her new neighbor might be more than just a nuisance. With unexpected sparks flying, Caroline discovers that her understanding of neighborly relationships is about to take a thrilling turn.