A mysterious Check-In System chooses Chen Lu as its vessel, offering tantalizing rewards at every turn. Visit the bathroom and Check-in for One thousand dollars! Climb to the apartment rooftop to Check-in and master a Powerful fighting skill! More locations mean greater riches—Chen Lu envisions his glorious future: boundless wealth, a wealthy wife, a life of carefree indulgence. Victory seems assured until the game's true nature reveals itself... His Check-ins aren't at ordinary places—they demand he enter the supernatural realms of Ju-on (2002), Dead Silence (2007), and Gonjiam: Haunted Asylum (2018). Why must every Check-in location emerge from pure horror?