A possible concise summary is:
A maid named Mohini plots to seduce and blackmail her employer, Aryan, a famous painter, by creating a fake video of them in bed. She also kills Aryan's previous employer, Sunil, by making it look like an accident. She tries to ruin Aryan's marriage with Payal, who commits suicide after seeing the video. Aryan and the police set a trap for Mohini by staging a fake wedding and exposing her crimes. Mohini is arrested and Aryan is reunited with his son Sunny.
Here are the key facts extracted from the text:
1. A man named Aryan Khanna is a famous painter who is married to Payal and has a son named Sunny.
2. A woman named Mohini works as a maid for different households and kills her employers for money.
3. Mohini tries to seduce Aryan and blackmails him with a fake video of them together.
4. Payal commits suicide after seeing the video and Mohini forces Aryan to marry her.
5. Aryan collaborates with the police to expose Mohini and her boyfriend Raman, who are arrested for their crimes.