London Bridge story is set on the backdrop of London and here lives Vijaydas (prithvi) who owns a set of money lending firms. One day he gets a call from the wealthy man Nambiar (prathap pothen) who wants Vijay to marry his only daughter Pavithra (andrea). She is a lot into social service. When everything looks set, Vijay ends up hitting Merin (nanditha) a new arrival to London. With Pavithra’s insistence, he takes Merin to hospital and realizes she would lose her job due to the accident. What happens from there forms the rest.