The Nice Guys (2016) on Netflix

Jackson Healey is a fixer who fixes things with his fists. Holland March is a cop who following his wife's death became a drunk. He would become a P.I. who takes on weird cases. He is currently working for a woman who wants him to prove that her niece a porn actress is alive when everyone knows she died recently. His investigation takes him to a girl named Amelia who avoids him. She then hires Healey to tell him to leave her alone which he does. But later some guys go to Healey and want to know where Amelia is. When he handles them, he asks March to help him find Amelia. They learn that Amelia's boyfriend, a film maker was killed and his house was burned down along with the film. They later learn the Porn star's producer is also dead. So what is going on.