Leila, 19, the adopted daughter of the Watson family. She is absolutely glad and grateful when her brother, John has returned from the army safe and sound. Yet soon they realize they will be running low on money and have to share a flat with a man called Sherlock Holmes. He takes them to crimes scenes and investigate together. Undoubtly they have taken a role in the perfect A team: Sherlock the brainy one, John the sensible one and Leila...Who will Leila be? As mysteries are being revealed bits by bits, they slowly acknowledge Leila's past, something that they all wish to unseen. So who is Leila? Is she going to be the dead end for both her brother and Sherlock Holmes or is she going to be the key to a whole new future?