"Trapped" was honest, captivating and effective.

I think the synopsis nailed this one lol

Rajkummar Rao felt pretty great through the length.

I think this one did a pretty good job, with some fine directing. For its length and with its circumstances, it achieves a good balance between its elements (a few downs but very acceptable).
It should, quietly, push a few "buttons" in different ways, in a very understated manner, which felt quite accomplished.
A few interesting "touches" related with animals too ^_^
The latter stages were quite thrilling.

The ending was quite "ordinary" but that's how life goes, sometimes.

Overall, definitely a well crafted movie. Quite simplistic and undemanding but achieving quite a lot, despite it. This one should be around the 7 or 8 region, which should depend on how much it resonates with you. I'm going for the latter, as I think the strong moments exceed the weaker ones.