You are an american who just moved in with your British pen pal. The two of you go out to dinner when you deduct the very man that you will change his life and yours possibly for the better.
A woman in a bridal gown starts to shoot up the streets of London and then turns the gun on herself. Seems like a straight forward case, until, hours later she returns and shoots and kills her husband and disappears without a trace. Who better to solve the case then the world's only Consulting Detective, Sherlock Holmes and his two companions, Doctor John Watson and Miss (y/n) (l/n).