The femme fatale Yuna Mizumoto plays a role as a girl from the red-light district, she specializes in seducing wealthy and lustful men to steal their assets when they are vulnerable. On one occasion, she "hooks" a tycoon who is the director of a prestigious real estate company in the city. Mizumoto thinks she has hit the jackpot, but little does she know that there is always someone more cunning. The woman of the night continues to use her old ways to "dig into" the man, but she doesn't realize that she is the one who will be harmed...