Alexander Stronghold, a woman with a hidden past and the resident of the apartment 221 B1 in Baker Street. She meets Sherlock, a high functional sociopath, John Watson, an army doctor with a heart of gold and together they solve one case after the other. However, with each passing case, it is revealed that Alexander is much more than your everyday neighbour... What is she going to do when her past is revealed? Will that ruin her relationship with the infamous duo? Will it affect her relationship with the man she has started to fall in love with? Will Friendship and love surpass the flaws and mistakes of each person in the small group or will it destroy them forever?