Saw II - Returning to the Bathroom

 

Eight people awake within a sealed house and are told via cassette tape that in three hours the exit to the house will open, however, they only have two hours to live as a deadly nerve agent is being pumped through the ventilation system of the house. The antidotes are hidden around the house, however, the catch is that littering the house are John's weapons of torture. While fleeing from Xavier, Daniel and Amanda find a trapdoor which leads them through a series of underground tunnels which ultimately lead them back to the bathroom.