While I admire Jeethu Joseph's presentation and choice of transitions used (except on a few occasions where they look dreadful), 12th Man takes too long to get to its boring conclusion. There's no knockout punch in this whodunnit - just the same old tropes (like debt, adultery, and cover-ups) rehashed. Since almost 75% of the film plays out in a hall, many of the twists are in the form of expository dialogue (especially over phone calls). I wish all the detailing that has gone into the script to modernize an "Agatha Christie novel"-like setting translated into more edge-of-the-seat moments. 12th Man's script is too mediocre and derivative (referring to 2016's Perfect Strangers) to leave a lasting impact. Plus, there's no Antony Perumbavoor cameo to make memes out of!
P. S - Someone please let A10's scriptwriters know that double entendre doesn't qualify for comedy anymore.