“My brain is very important.” - Dr Yoshiro Nakamatsu

“The brain reaches maximum activity 0.5 seconds before death, then I can suddenly create a breakthrough!” So says Dr Nakamatsu, a Japanese Willy Wonka of random invention, regularly starving his brain of oxygen underwater to get new ideas. Eccentric to say the least, he sleeps four hours a day, eats only one meal, choses his cameras by smell and has close to three and a half thousand patents under his belt, including the floppy disk.

With more inventions than Thomas Edison and a serious belief that he will live to the ripe old age of 144, Dr Nakamatsu makes for one of the most interesting subjects of a documentary imaginable. Danish filmmaker Kaspar Astrup Schröder goes down the rabbit hole with Nakamatsu and finds an odd world of gadgets and gizmos where the inventor is king.