I'm assuming you're referring to the 2020 Indian Tamil-language psychological thriller film "Ashaant"!

Here's a guide to help you find and watch the full movie:

The movie features in the lead role, along with Arun Nayar , Rahul Ravi , and Bala Saravanan in supporting roles. The film is directed by Arivazhagan and produced by R. S. Ramesh .

If you're interested in learning more about the movie before deciding where to watch it, here's a brief summary: