A blog on a mysterious website quickly spreads like wildfire, starting a dangerous online game. At 3:00 in the afternoon, a teddy bear stuffed with rice and nails is sunk into a bathtub. The lights go out and the player is required to stab the bear with the knife, then write their experiences in the blog. But lately the comments have taken a dark, demented turn, as if the players are being possessed.

When testing out the new, online game "DeathPenalty.com," a group of gamers discover that when they "kill" someone in the game, they are actually murdering someone in real life. Will the attractive Mio discover who the murderer is, or will she end up dead, like her friends?