Sherlock Holmes - The demon barber of Baker Street

Sherlock Holmes was a barber in Baker street. He pines after his long-lost love, John, and wishes to get revenge on the man who tore them apart; murder has never been so delicious. Dark!Sherlock, Dark!Molly. Johnlock, (Sort of) Sherlolly, Mystrade, one sided Moricroft, one sided Johniarty. I own nothing. Warnings: Gore and violence, depression. *Happier ending than Sweeney Todd*