India, March 28 -- Some characters arrive on screen. Vijay Sethupathi's Muthu, in Muthu Alias Kaattaan, arrives like a folktale that has already gone wrong. Muthu is not a hero, not a traditional king anyway. He does not have an epic "entry" sequence. In fact, the first time we meet him, we see his smiling severed head. Here's Muthu Alias Kaattaan ending explained.

It is a murder mystery so bizarre that it feels almost supernatural. Why would somebody chop off a head and place it in the middle of nowhere? More importantly, why would there be a grin on the face of someone whose head was being separated from his torso? Or is that a corpse smile (natural relaxation of facial muscles after death)? This is a mystery so strange that even the ...