This documentary shows us that a scientific film can be both funny and effective at once. Thomas B, hardcore smoker, is giving up. He was a heavy but happy smoker will he become a happy non-smoker? Through his personal diary, we bare witness to his changing moods. We accompany him on his regular visits to the tabaccologist for practical advise and support and to the labs where nicotine dependency is tested on rats. Thomas manages to dedramatise giving up smoking with wry humour and pays homage to his fellow smokers still hooked.