Watch Online Free on Watchseries. London, today. A refugee washes up naked in a suitcase on the bank of the Thames. The enigmatic, sexually fluid stranger introduces himself to a bourgeois, upper-class family, who invite him to stay on as an employee. The Visitor soon seduces each member in a series of explicit sexual encounters. He will turn their world upside down as they can redefine themselves in new, radical ways.