Message from the King (2016) online

After suddenly losing all contact with his younger sister, Jacob King arrives in Los Angeles determined to track her down. Trying to piece together her last known movements, King finds unsettling evidence of a life gone off the rails - drugs, sex and secrets in the sleazy underbelly of the City of Angels. Undeterred by warnings to go home, King proves to more than a match for the violence he is confronted with as he relentlessly pursues the truth about what happened to his sister.