Having not read any of Thomas Pynchon’s novels, I cannot compare this film version to the book upon which it is based, but let’s just say that the story takes place in the (imagined?) L.A. of the 70s, involves lots of drugs, criminals, police, a private detective (Joaquin Phoenix is the star), kidnapping, more drugs, violence and humour. There is a lot going on here, but unfortunately I lost interest by the half-way mark. Perhaps you will have better luck.