Welcome to the 90s Mumbai, where the Bhais' called the shots. Mum Bhai, a crime-thriller set in the 90s, a time when Mumbai was dominated by the underworld. It was the time when everyone wanted to rule the city, and so did Rama Shetty - One of the most wanted gangsters and Bhaskar Shetty - A top encounter specialist. Belonging to two different sides of the coin, Bhaskar and Rama were like brothers, but the tables turned when politics and power took over every relationship. Bhaskar Shetty gained power, money and fame, but there was someone who was smarter than him, who was playing him, who was actually ruling the city, who was the real Mum Bhai. As you dive deeper into the story, you'll not just see the dark side, but the grey side of the city, the side where the only rule was to rule the city.