I'd say this is a very heartwarming documentary about Wu Wuna's father who is a perennial inventor who never tires of inventing something useful for the world.  First it was sex toys and then, powered by the thought that his wife died because of cancer he goes on to discover the best organic diet and a breakthrough food processor to make it happen.  What I  see very touching about this film, aside from learning the true acount of Wuna's father and his struggles through life, would  be the great relationship between father and daughter.  For some it would be truly taxing and even embarrassing to document and interview your own father but for Wu Wuna it took her upon herself to show her father in an up-close and personal light.  Worth checking out!