Happy Home Rescue

Your wife has long asked you to change the lock in the door, because it is constantly jammed. You waited till the last, but what happened today, led to accelerate this process. You go to work and would have to close the door, but forgot your phone. You left the keys inside the lock and entered the house. The door closed, and the internal lock does not work. You have to find the spare keys to open the door from the inside.