When the young Adamplayed bygradually woke up from his coma, he found himself locked in a dilapidated basement, and not far from him, he was locked in another one who was at a loss. People-Doctor Lawrence. On the floor between the two of them, there was a man who had been dead for a long time. The body was covered in blood and he was holding a 38-caliber pistol in his hand. Neither Adam nor Lawrence knew how they came to this place. Just when the two of them were puzzled, the auto-playing tape left in the house rang. The tape ordered Lawrence to kill Adam within eight hours, otherwise the two Individuals will die, and Lawrence's wife Alisonand daughter will also be killed.
At this time, the two suddenly understood. They recalled the recent murder investigation by Detective Tapof the local police station . The two realized that they had become the hands of a perverted murderer nicknamed "Strong Saw". Playthings, and soon will be the next victim to be killed, there are only a few hours left. They must overcome their fear and figure out the well-designed trap. The murderer only left a little clue, and two humble handsaws left on the floor. A hand saw cannot cut iron handcuffs, but it is enough to cut a person's flesh and bones.
