When Sam (Craig Roberts), an ambitious bellboy meets Mary (Imogen Poots) , an attractive jewellery sales assistant, he is very quickly and very truly smitten. Every other plan and thought goes out of the window as he fights to overcome his fear of rejection and follows Mary back to her place of work with the intention of asking her out on a date. Unbeknown to Sam, armed thieves also have an appointment at the same jewellery store and arent planning on leaving without the rare million pound Stahl Papillon brooch. With the panic button pressed and armed response units swarming into the area Sam, Mary and belligerent elderly shop owner Charlie (Timothy Spall) are taken hostage.