Tamil mystery favours tight, clever construction, and the ranking rewards it. Karthick Naren’s debut Dhuruvangal Pathinaaru leads — a puzzle-box detective story made on a shoestring — followed by Karthik Subbaraj’s Pizza and Vikram Kumar’s Yavarum Nalam.

The genre overlaps heavily with the thriller here, but its best entries turn on a single withheld fact: P. Ramesh’s Thegidi, Sriram Raghavan’s Merry Christmas, Ashwin Saravanan’s Game Over. Each film’s position is a composite of IMDb, Rotten Tomatoes, Metacritic and TMDb scores, Bayesian-adjusted so a well-reviewed newcomer settles until a real audience confirms it, rather than spiking on a few votes.

Every title below links to its cast, ratings from each source, and streaming.