Slightly turn to your left from the place you are standing, to your left you can find a sink and to your right you can find a phone on the platform, walk in between the sink and the phone, enter through the opening which is infront of you, slightly turn to your left, you can find a staircase, go up the stairs and move forward until you see an another staircase infront of you, get down the stairs, now you are at the end of the staircase, where you can find an opened door infront of you, that would be your end point.