Dial 100 2001 on netflix

Rahul works as a Manager with a Hotel that was formerly owned by Bajaj, but after his suicide, Prem purchases the hotel and moves in along with his newly-wed wife, Anjali, and sister, Pooja, who is in love with Rahul. They decide to hold a dual celebration for Prem’s wedding and the hotel ownership. After the announcement, Pooja gets an anonymous telephone call that Prem’s life is in danger.