Sisters of Mercy Brothel

A man is in middle of long, boring drive when he sees a sign on the side of the road that says "Sisters of Mercy Brothel, 50 miles".
He's a little taken aback and thinks he read it wrong, and he keeps driving.
Am little while later he sees another sign, "Sister of Mercy Brothel, 10 miles".
He can't believe what he's seeing and continues his drive.
Soon he sees the sign with an arrow "Sisters of Mercy Brothel".
His curiosity gets the best of him and he pulls over into the parking lot.
On the door there's a sign "Enter, my child", so he goes inside and follows a long, winding, dark pathway until he reaches another door with a basket in front of it.
Above the basket it says "Drop $100 in the basket and enter".
Now excited, the man drops his $100 and opens the door.
The door slams shut behind him and he finds himself back in the parking lot next to a sign...
"You've just been screwed by the Sisters of Mercy. Go in Peace".