Kaiyethum Doorath movie tells a flashback when Sachin (Shanu) is on his way to attend his lover's Sushma (Nikitha) marriage as he tells his past to the co-passengers on a ferryboat who gets hooked on to his love story. What happens at the marriage forms the interesting twist in this love story.
Fahadh Faasil
as Sachin Madhavan
Nikita Thukral
as Sushma
Siddique
as Dr. Babunath
Revathi
as Dr. Omana Babunath
Mammootty
as Gopinathan
Rajan P Dev
as Sadasivan
Sudheesh
as Tony
Cochin Haneefa
as Kundara Sharangan
KPAC Lalitha
as Bhanumathi
Harisree Ashokan
as Appunni
Augustine
as Passanger in the Boat
Janardhanan
as Passanger in the Boat
