Three extraordinary stories covering infidelity, adoption, and a drug dealer turned actor intertwine as characters meet in the streets of London.
| Actor | Role |
|---|---|
 Idris ElbaMax | Max |
 Gemma ArtertonEmily | Emily |
 Tom CullenJake | Jake |
 Ryan GageVincent | Vincent |
 Kierston WareingKathy | Kathy |
 Franz DramehKingsley | Kingsley |
 Ken StottTerence | Terence |
 Charlie Creed-MilesGeorge | George |
 Lorraine StanleyTina | Tina |
 Ashley ThomasJules | Jules |
 Mark FrostReesy | Reesy |
 Jo MartinMarie | Marie |
| DDuayne BoachieSean | Sean |
 Paul HickeySimon | Simon |
| CCarolina TongLibby | Libby |
| DDominic GeraghtyDominic | Dominic |
 Rupert ProcterCommunity Service Team Leader | Community Service Team Leader |
| KKay BurleyHerself | Herself |
| JJohn InverdaleHimself | Himself |
 Jane ElsmoreTopless Woman | Topless Woman |
| JJack O'ConnorJoe | Joe |
 Cali NelleBoyfriend in SUV | Boyfriend in SUV |