Julia and Toby have been friends for years, but apart from a couple of drunken snogs in their university days, there's never been anything more than friendship between them. It's only when Toby goes through a dramatic break up with his gorgeous ballerina girlfriend Ruby, that he and Julia realise they're meant to be together. Then Ruby drops a bombshell - she's pregnant - and though he feels torn in two, Toby feels he has to give their relationship another chance. Heartbroken Julia is left to lick her wounds in her little Walthamstow home, thinking she has lost Toby forever. But things soon become much more complicated ...