Santhoshathinte Onnam Rahasyam (English: The First Joyful Mystery) is a 2021 Malayalam film directed by Don Palathara starring Jitin Puthenchery and Rima Kallingal.

The music is composed, produced and arranged by Basil CJ with lyrics penned by Sherin Catherine.

Based on a script by Don Palathara the main performers Rima Kallingal and Jithin Puthenchery act in a single 85 minute narrative take captured by a dashboard camera.

The director chose one of the five takes that were captured and noted it became a tribute to the powers of collaborative film making and performance.

[6] The power play of men and women is the central theme of the film framed around the secret status of live-in couple's future life revolving around motherhood.

The conversation that occurs inside a car ride offers the viewers different opinions on the personalities of the two partners.

[13] Baradwaj Rangan of Film Companion South wrote "This time, we have a "plot", and characters who talk a lot.