Prince Sherlock must marry, and his brother is determined to find him the perfect partner before the three nights of the Winter Ball have passed. In Gregory Lestrade, Mycroft thinks he has found Sherlock that perfect partner: a man who is kind, brave, intelligent, and even attractive. Very attractive. Very, very attractive.
If Detective Inspector Gregory Lestrade ends his days listening to music and drinking, just like Mycroft does, Mycroft has no problem with that. The problem is that Lestrade, just like Mycroft, is supposed to end his days listening to music and drinking alone.
Greg Lestrade has a date for the theatre on a beautiful midsummer night. The beautiful midsummer night has other plans.