In the depths of the underground casino known as 'Paradise,' where shadows loom and secrets thrive, Toru Shintani, a dealer, becomes suspicious of his colleague Kikuchi's illicit activities. Confronting Kikuchi about his alleged theft, Shintani unwittingly plunges into a dark world within 'Paradise.' To monitor Kikuchi's actions, Shintani extends his hospitality to the troubled thief, unwittingly becoming a reluctant intermediary between Kikuchi and the yakuza controlling the clandestine establishment. As Shintani delves deeper into this precarious arrangement, he soon realizes that navigating the treacherous waters of the yakuza is far more hazardous than his role as a mere dealer.