Dynamic & successful criminal lawyer Raj Goyal(Akshaye Khanna) thinks he has it all figured out. An idealistic crusader of justice, Raj is equally committed in punishing the guilty as he is protecting the rights of the innocent. His involvement in his work is complete, ruling out a inclination of falling in love. But all this changes when he meets Sargam(Urmila Matondkar), a beautiful and popular singer. Through Sargam, Raj comes across Tarang Bharadwaj(Ajay Devgan), a talented musician with a brilliant mind, her childhood friend and mentor. Tarang is a victim of circumstance, caught red handed at the scene of a brutal and henious murder. The victim is music magnate Ashwin Mehta(Vijendra Ghatge), who has been found dead in his house in the wee hours of the morning, with multiple stab wounds. The violent nature of the murder implies a crime of extreme hate & vengence. Sargam believes in her friends innocence and requests Raj to defend him. Raj and Tarang have nothing in common, but in the course of putting strong defense, Rajs investigations bring him close to Tarang. It starts out as an open and shut case about proving his clients innocence , but in order to exonerate his client , Raj must find the real killer. Before he realises it, Raj gets entangled in a mistery more dangerous than anyone can imagine. Can he save himself from the dangerous trap laid out for him by a diabolical killer who manipulates his every move? Find out in the disturbing and suspenseful thriller Deewangee.