When you start the chase you hear something breaking. Don't worry about that. When going through the door, you will see obstacles such as couches and tables. You should jump over the first couch. Following that you should go in between the table and chair. Then jump on the left side of the table behind the couch. Then, you'll go through the door. Go over the right side. Then jump over and between the two chairs. After that over the couch. Go to the left side, then quickly to the right once you've passed the tables and chairs. Then simply hug the wall and jump over. And you're done!