Davies spent most of his writing career riffing on themes of identity confusion and amnesia. He wrote in all genres often blending and hybridizing well known tropes of detective fiction (amnesia victims) and science fiction (mind altering drugs) into a kind of new subgenre of his own invention. Psychogeist (1966) tells of a young man who cannot remember who he is and alternates with his hallucinatory dreams of an alien world that parallel the story of his recovery from amnesia. Or is he actually an alien who crash landed on Earth? Probably his best known crime novel treatment of identity loss is his second novel Who Is Lewis Pinder? (1965), originally titled Man Out of Nowhere in the UK. Give Me Back Myself (1971) belongs with Davies' crime fiction novels. It presents the story of Stephen's search for his true identity as a tale of an unbelievable conspiracy with no introduction of either supernatural or science fiction elements.
In these amnesia novels we are always hoping for the hapless protagonist to find at least one ally who will believe his story, help him uncover the truth and bring the villainy to light. Stephen finds his allies quite by accident when he asks for directions of his next door neighbor Ambrose Kenny. Later Kenny's daughter Fran will stop by for her weekly visit and she will turn out to be both confidante and detective cohort. The manner in which Stephen and his two allies slowly uncover the plot is done with ingenuity and a few startling surprises. You have to credit Davies with a fertile imagination in continually finding new methods to essentially tell the same story repeatedly.
Though his books are out of print copies of nearly every one of Davies' fascinating books are easily found in the used book market at very affordable prices. I'm sure many of his books, not just Give Me Back Myself, can be find both in US and UK libraries as well.
I read this book for both Bev Hankins' Silver Age Vintage Mystery Reading Challenge and Rich Westwood's 1971 Mystery Reading Challenge. For more on L. P. Davies breathtaking displays of variation on the theme of amnesia and identity confusion see Sergio Angelini's reviews of Man Out of Nowhere and The Alien.