Mark is a chemical engineer. He loves chess. He lives with his mum. A teaching assistant has had it up to here with her own conscience. A caretaker grows tired of childrens’ vomit. Unfortunately, their story is constantly being interrupted by chaotic sketches, we see a French disco, a period drama and a very sad potato..? Leaf is quite possibly the theatrical spawn of Monty Python and the Mighty Boosh. Brace yourself.