Keep the Lights On chronicles an emotional and sexually charged journey between two men in New York City through love, friendship, and addiction. Documentary filmmaker Erik (acclaimed Danish actor Thure Lindhardt in his first leading role in a U.S. film) and closeted lawyer Paul (Zachary Booth) meet through a casual encounter, but soon find a deeper connection and become a couple. Individually and together, they are risk takers, compulsive, and fuelled by drugs and sex.
