Waterloo Bridge, London. Two strangers collide. Attila, a Ghanaian psychiatrist, and Jean, an American studying the habits of urban foxes. From this chance encounter in the midst of the rush of a great city, numerous moments of connections span out and interweave, bringing disparate lives together. Attila has arrived in London with two tasks: to deliver a keynote speech on trauma and to check up on the daughter of friends, his 'niece', Ama, who hasn't called home in a while. It soon emerges that she has been swept up in an immigration crackdown - and now her young son Tano is missing. When by chance Attila bumps into Jean again, she joins him in his search for Tano, mobilizing into action the network she has built up, mainly from the many West African immigrants working London's myriad streets, of volunteer fox-spotters: security guards, hotel doormen, traffic wardens.