This isn't technically a snake movie, but it deserves an honorable mention.

 The first thing we learn about Mamta (Divya Khosla Kumar), the protagonist of Ek Chatur Naar (2025) is that she loves watching TV serials about shapeshifting snakes bent on revenge.  Mamta watches them with her mother-in-law Radha (Chhaya Kadam) while her son Sonu works on homework for his online school, and they do it all in the dark because they're hiding from loan shark Thakur (Yashpal Sharma), who is still trying to collect on a debt owed by Mamta's late husband.  They're poor, in other words, and likely to stay that way for the rest of their lives.

Mamta works at a metro station in Lucknow, and she happens to be watching the CCTV when a passenger drops his expensive phone and a thief runs off with it.  Mamta is hoping for a permanent job at the station, so she gives chase and nearly recovers the phone, but winds up with a gash on her head for her troubles.  Or at least that's what Mamta wants you to think - she really hired the thief, because she wanted a nice phone for Sonu to use for his homework.  Before she gives the phone to Sonu she needs to see what's on it, and there's . . . actually quite a lot.

The phone belongs to smarmy accountant Abhishek Verma (Neil Nitin Mukesh), who is rich, handsome, charming, and corrupt, working with shady government minister Qureshi (Zakir Hussain) to siphon government funds intended for poor farmers into their own pockets.  Abhishek is married to Anjali (Rose Sardana) and having an affair with his secretary Tina (Heli Duruwala), and he was careless enough to leave evidence of both the affair and the government corruption on his phone.

So what's a hardworking woman like Mamta to do?  Obviously try to blackmail Abhishek.  It doesn't feel like a fair contest; Abhishek has wealth, power, political connections, and the help of Police Inspector Triloki Singh (Sushant Singh), while Mamta has her wits, moxie, and the help of her alcoholic mother-in-law, so you would expect that she's going to wipe the floor with him.  However, Abhishek is ruthless and has a certain low cunning, so he eventually shows up at Mamta's house, threatens Sonu, and has Radha arrested, which  means Mamta has to escalate by getting a job in Abhishek's house as the new maid.

This is a black comedy rather than a straightforward crime drama, so while there are real stakes and a genuine sense of threat, the constant escalation and one-upmanship feels more like a Bugs Bunny cartoon than the usual filmi noir; Mamta transforms herself into a trickster figure, using her beloved snake serials as a motif.   Still, the mystery plays fair, and after the big twist everything makes more sense rather than less.

Ek Chatur Naar translates to "a clever lady," and that is exactly what you get with this movie.  It has a flawed but compelling protagonist, a charming but despicable villain, a solid mystery, family drama, and some solid jokes.  Very filmi, sort of noir, and a lot of fun.