British Police inspects a room where there are no windows, no doors, no tables and is almost empty expect there is just a puddle of water. They found a dead woman who obviously hung herself from the ceiling, but they are not able to figure out how this had happened.
Sherlock and John Watson entered the crime scene and easily able to solve the case.
How did the women die?
She hung herself using big Ice slabs, which are now melted and hence puddle of water.