Three is a story which is about the happenings in a house in a place called Purple lake. The story revolves around, Mrs. Anjini Dutt (Nausheen Ali Sardar), who is married, and is also a violin teacher and is running the house with whatever she earns. Her husband, Rajeev Dutt (Akshay Kapoor), who has not been able to earn much lives in her house and on her money, which is the reason for his anger and frustration, and that frustration is also very visible in their marriage, he pushes his wife away because of the ego which has been growing in him over the years.

Rajeev finally gathers the courage and asks her to sell her house, and give him the money to invest in the business; she gets furious as her house is her only connection with her parents who are no more. She decides to help her husband and give one portion of her house on rent so that her husband can use the money for his business.

Sanjay (Ashish Chowdhary) comes to stay in her house as a tenant, and reads the tension between the couple, he sympathizes with her and in the process she falls in love with her lacking the love in her marriage.

Is Sanjay's love for real? Has Mrs. Dutt made a mistake? Will she have to pay for it with her house...or even her life?

Three. Love. Lies. Betrayal.
Into their house,
They let in a stranger.
Two lived happily
Now, three live in danger.