When the luckless Martin and Renato have the bright idea of starting up a guided coach tour of the M25, London's orbital motorway, they think they're on to a winner - but they soon discover they're on course for disaster.

This film follows Nina as she trains as a giggle doctor with Theodora Children's Charity, beginning with her trying to find her clown persona, who might be Scottish... or might not. Devastated by the discovery that Monkey can only perform in hospitals if he can be boil-washed, Nina tries to go it alone with only a red nose, a few misshapen balloon animals and some slightly disappointing magic tricks. Not to mention her professional snobbery rearing up as she finds herself turning into a baby-voiced children's entertainer. Then there are the difficulties she encounters when faced with clown phobia. Following her directorial debut with Her Master's Voice which won a Grierson Award and a BAFTA nomination, Nina Conti brings us another frank and intimate documentary about her eventful two-year stint as a hospital clown. Join her to discover whether Nina raised a laugh amongst sick children or whether she cried the tears of a clown.