For Sherlock, it felt like an experiment. It started out with a curiosity, maybe a case – how did the body end up like that? What was the cause? Why was the grimace of the victim in such a strange way? However, it wasn’t some sort of mysterious murder case; it was the case of Sherlock’s emotions. Why did his heart do that strange double-beat-skip when he saw John? What was the cause? Why was the twisting of that man’s lips so fascinating?
Then it became the investigation. Body found at intersection of two roads. Arm positioned suspiciously under torso. Drop of blood on white collar. Staring at John when he looked away, stealing glances to deduce the specific twists and turns of that man. Soft-looking hair and slight wrinkles but warm eyes. Mocking twists to his thin lips but a small frame like a stuffed plush. Watching carefully, deducing and noting what twisted Sherlock’s heart so.