You are facing towards the closed door. Move towards your right side, you will find stairs going upwards. Take the stairs and go up. Now, take right from the chairs on the left side. Move straight and take left. You will find an entrance. Enter through it and take left. You will find another entrance with staircase going downwards. Take the stairs and go down. Now, move towards your right side, you will find an open door. Enter through it and then stop in the middle. That will be your end point facing the wall with glass windows and washbasin on the right side.