Sommokadidhi Sokokadidhi is the story of a well respected doctor and his look alike, who realises that his face is similar to that of the doctor. So he plots a plan to take the doctor's place when he is away from the hospital. He soon starts to pretend that he is the doctor.
One day the doctor discovers he has a look alike. He pretends that he is Shekhar. Shekhar goes to rest Ranga's house but fall in love with Ranga's cousin sister at the first sight. Ranga falls in love with Shekhar's fiancée. The climax reveals that Ranga and Shekhar are identical twins. Some goons kidnapped Shekhar for money. Both brothers are reunited and marry their lovers.
The soundtrack is composed by Rajan–Nagendra. The tune of the song Tholivalapu Tondarulu[9] was adapted from music director's own Kannada song Nagunagutha Nee Baruve from the 1977 Kannada movie Girikanye .[10]
Reviewing the Tamil dubbed version Iru Nilavugal for Kalki, Kousigan praised the performance of Kamal Haasan, the music, dialogues and cinematography.[11]