Keep the Lights On chronicles the emotionally and sexually charged journey through the love, addiction, and friendship of two men. Documentary filmmaker Erik and closeted lawyer Paul meet through a casual encounter, but they find a deeper connection and become a couple. Individually and together, they are risk takers—compulsive, and fueled by drugs and sex. In an almost decade-long relationship defined by highs, lows, and dysfunctional patterns, Erik struggles to negotiate his own boundaries and dignity and to be true to himself.