It's a science fiction movie about time travel. It was released in 2004. It was made for only $7,000 and stars Shane Carrtuth. It was written, directed and produced by Shane Carruth. Was not a book.
the movie Primer is about a group of engineers who accidently build a time travelling device. They can seemingly do anything with this device but need to acknowledge the consequences of interfering with the past and the paradoxes that can arise when the traveller goes back in time.