I don't know what the password is. The place is called 815. I will google it and see what's up

I don't know about you but stepping into a phone booth, giving a password and then a wall opening up is sofaking cool to me. Below is the trip advisor review. Awesome date night idea...even if you're not a drinker.  

If you are into craft cocktail, then 815 is a must. I was pleasantly surprised by the fun experience of finding the bar, and using the password in the pay phone to enter the bar. When the wall opens and the bar is in front of you it is truly like a secret hideaway. We had several drinks and great service, closing down the bar at 1 am (Manchester has early closing hours). A great place to visit with friends or for date night.

Something different from the norm. I think it's a really cool idea

Cool I followed them