Big Brother II
Sherlock looked closely at the vase.
It was a vase that came with an online flower order, but not the standard free model. It had been used eighteen . . . no, twenty times. That spoke to a flourishing relationship. But it had not been used in over ten months, and now it was in the bin.
He rummaged through several kitchen drawers before he found what he was looking for: an address book. Mary was surprisingly old-fashioned. And there was the name.
As soon as John finished yelling at him for breaking into Mary's flat, Sherlock was going to investigate this David.