India, April 17 -- Bollywood actor Nawazuddin Siddiqui is all set to entertain audiences with his upcoming film Costao. The makers recently released an intriguing trailer, showcasing how Nawazuddin's character not only attempts to stop the biggest gold smuggling operation in Goa but also ends up fighting the very system he serves. (Also Read: Nawazuddin Siddiqui on his new book: I knew it would upset a lot of people)

Nawazuddin plays the role of Costao Fernandes, a customs officer who took on Goa's most powerful smuggling syndicate in the 1990s. The trailer depicts how he plans to bust the gold smuggling ring, only to be betrayed by his own system and falsely accused of murder. He then finds himself fighting both the corrupt establishmen...