Sherlock and John celebrate their Christmas together as a couple with Rosie and the gang. Things don't go according to plan when an unwelcome visitor crashes the party. Is Christmas ruined forever? Will Sherlock and John make it out alive?

“I’m starting to think letting you into my home wasn’t such a good idea.” “Oh it was probably the worst thing you’ve ever done.” There was a moment’s pause before he spoke again. “Do you regret it?” “Not one bit.”

On the days leading up to John and Sherlock's second Christmas together at 221B the pair find themselves very drunk, leading to long withheld confessions, and ultimately the best Christmas that either of them have ever had.

John hates the idea of soulmates. The scar covered, cursive writing of the word 'Willaim' haunts him with childhood trauma made worse by his experiences from the war. Sherlock has always denied his ability to love. The name on his wrist the only reminder that he can. When he meets John Watson he believes he may have found the only person who could make him more human. But how can he know when John won't show his soulmates name to anyone, ever.