Aditya (Vipul Gupta) is a film-maker whose last two films have failed miserably. He is currently working on a script which for him is almost like a final attempt at glory. His failures have created a rift in his relationship with Meneka (Mahek Chahal), his wife. While the marriage is not really on the rocks, Meneka does feel neglected and lonely. Her attempts at understanding Aditya are usually met with a snub. She misses the caring, loving and passionate Aditya for whom she had forfeited her successful modeling career.

Anjaan is a look at a relationship desperately in search of a reason for its existence. A relationship that has long been clouded by miscommunication and misunderstanding! What seems to be an innocuously normal day in the life of a bored marital relationship soon turns into an exploration of the psyche of the individuals that inhabit these relationships.

The arrival of a stranger, Shoaib (Aamir Ali), into the house soon turns into an exploration of morality and momentary temptation. A lackluster day in the life of Aditya and Meneka soon turns into a roller-coaster ride. The disarming, mysterious Shoaib opens up vistas that were till now taboo for Meneka. He charms her, he angers her and in the process he provokes her innermost thoughts and desires.

The stranger, Shoaib, soon becomes a metaphor that reflects Meneka's state of mind but is about to shake the foundations of an existence that Meneka and Aditya had always taken for granted...

Who is this dangerously charming stranger? Will his presence rock the very institution that Meneka has been clinging to? And what will Aditya who has been so engrossed in his own professional failures do when he realizes the deception that is about to engulf his personal life?

A metaphorical, seemingly slice-of-life 'marital thriller', Anjaan is a taut, at times humorous, at times evocative, at times thought-provoking but seldom verbose look at relationships.