In the neon-soaked streets of London, Thomas, a jobless post-graduate concept artist, falls in love with Rhea, a mysterious woman who turns out to be a vampire. Drawn into a codependent relationship, Thomas willingly offers his blood to Rhea in exchange for her companionship. As their twisted romance unfolds, Thomas's health deteriorates, and he spirals out of control. 'Drained' explores the theme of codependency, reflecting the addictive nature of modern life while delivering a dark and alluring vampire horror experience.