You are a team of detectives investigating the disappearance of famous English professor.
The search led you to the safe house. Who knew that your evil opponent specially lured you into this trap in order to play his insidious game.
When leaving, he set the bomb up, and upon entering the house you started the timer. The timer on the bomb is showing 90 minutes and ticking.
Hurry to find your way out and disarm the bomb, which is ready to blow up half of London.