Just watched a Bollywood scary movie called A Flat. It's so weird... despite being this dark and serious scary film, it manages to put in no less than two Bollywood style musical scenes... the first one is rather sensual, but the second is really upbeat with music and dancing etc. And it goes on for a while, which really makes the spooky feel of the film feel disjointed. But I've been told that this is what sells in India, and that movies without a musical number tend to not do well, so I guess from a marketing POV it's understandable, but from a story-telling POV it's really quite campy and just stalls the plot during the whole scene like most of the supposedly funny scenes in a Michael Bay film. There's a third musical moment, but it's done better and fits in reasonably well with the scene of the movie (it works more like a musical narrative rather and goes with the flow of the story rather than stalling it).

The soundtrack also sometimes goes over the top in some places, and I think that for a movie of this genre, less would've been more. This movie would've been scarier if the damn soundtrack didn't give away every scary moment. Scary movies are spookier when you've got dead silence and suddenly something freakin' horrifying just jumps at you! The orchestra just does all this build up, so by time you see the scary thing, you've already braced yourself and it's just... well... not as scary. And some of the scary elements weren't terribly original either, but the story does have some nice surprises (particularly with the roles of the protagonist and antagonist) and builds well to its final conclusion.

Trailer