The girl is strangled in her own apartment.

Lisa was a Secretary at a well-known numismatist.
A week ago, she stole part of his collection.
The collection was quite large, she hoped that he would not notice the loss.
But fate decreed otherwise.
The theft was filmed with hidden surveillance cameras.
Lisa didn't know that numismatist had connections in the criminal society.
Numismatist asked the mafia boss to help him.

Today, the mafia boss ordered the Bald to solve this problem.
Bald came to Lisa's house.
He introduced himself as an employee of the water supply service.

- I need to check the water meters.

Lisa let him into her apartment...