THE START | BBC SHERLOCK S1

Elizabeth Harris arrived in London to celebrate her hen night. Alongside her friends she celebrated in a local pub but everything came crashing down when she saw her future husband with his hands all over her best friend and future maid of honour.
In her moments of despair she meets two confusing men. An ex army doctor who misses war and a high functioning sociopath who solves murders. How will she cope with this new world she's in?