I am Josh Polonski's Brother(2001)

Overview

Three brothers, Abe, Ben and Josh work in a textile shop and live a relatively quiet life until one day when Josh is killed in front of Abe's eyes. Determined to solve the mystery surrounding his brother's death, Abe is drawn deeper into an underworld filled with prostitution where he meets Jill, a call girl who guides him in his brother's footsteps.