SI is a 2024 Indian Malayalam language crime thriller film written and directed by Sanoop Sathyan.

[10][11] Retired police inspector Ramachandran investigates a case of falsely accused suspects in a rural area, uncovering lies, betrayal, and the real culprit to exonerate the innocent and restore faith in justice.

Principal photography began on 27 February 2023 with a customary pooja function held at Thiruvananthapuram.

[21] In his review, K R Rajeesh of Now Running praised the performances of the lead actor and wrote, "Overall, it is a quiet thriller with a measured treatment and neat execution.

"[22] Gopika of The Times of India also gave a positive review rating the movie 2.5/5.