“Mithya” is a story of V.K/Virendra Kumar [Ranvir shourie], a struggling actor, Who witnesses a attempt to murder of underworld don Rajee bhai / Rajendra Sahay [Ranvir shourie].He is kidnapped by ram,shayam [ Vinay pathak & Brijendra kala] henchman of another underworld don Shetty [Saurabh shukla].Shetty and his main associate Gawade [Naserudin shah] plans to replace v.k as rajee bhai. They introduce Sonam [Neha dhupia], mistress of gawade to v.k, who emotionally connects with him. After the training v.k is replaced as rajee bhai and starts living with rajees family [revati his wife [Iravati], two sons, mother [Suhasni mulay], brother manu [Harsh chaya] etc.] and tries adjusting as don. But fate had its own ways. v.k meets with a accident where he looses his memory and what happens next is what to watch out ….