Psycho Killer Escape

In our city a new Psycho killer trapped the people in their own home. He was playing a game with the people by locking them inside the house without any exit and cut all the basic need like phone, electricity etc. He intimate about their trap in a post card and psycho killer given only chance to escape is through the main door. He leaves the people only if they exit through the main door. Psycho killer enjoys the people dying without food and water. Find the right way to escape from the psycho killer.

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