Karl Foyle and Paul Prentice were best mates at school in the Seventies. But when they meet again in present-day London things are definitely not the same. Karl is now Kim, a transgender woman, and she has no desire to stir up the past while she's busy forging a neat and orderly new life. Prentice, on the other hand, has charm but is a social disaster stuck in a dead-end job. His main talent is for getting them both into trouble. Amid the squabbles, they start to fall in love. One night, Kim invites Prentice to a romantic dinner at her flat. Prentice, finding the seduction unexpectedly effective, freaks out. He proceeds to make a public display of both of them and winds up in court. Humiliated and angry, Kim runs away. Only she can save Prentice now, but will true love triumph for this woman and an aging punk?