Paap, the first Bollywood movie to make it's premiere at the Kara Film Festival held in Karachi, Pakistan on December 20 2003, marks the directorial debut of actress-producer Pooja Bhatt. Written by Mahesh Bhatt and co-produced by Sujit Kumar Singh, 'Paap' marks the debut of model Udita Goswami who pairs opposite 'hottest among the males stars' - John Abraham.

Paap gives an insight into the world of spirituality. It deals with a young girl's dilemma on choosing a path of love or a better life in her next birth.

Kaya (Udita Goswami) is a 21 year old girl from the village who is given the task of finding this six year old child, by the name of Lamho (Madan Bhiku). Her mission is to bring the child back to the monastery. Kaya has grown up in a disciplined environment of Spiti. Her strict father (Dr. Mohan Agashe) has already etched out a path which will lead her to the true meaning of life and reincarnation to a higher level in her next birth. Despite her strict upbringing, Kaya secretly longs to experience what being in love would be like. Meanwhile, Lamho becomes the key witness to a murder case being investigated by police officer Shiven (John Abraham). Shiven and Lamho in the peaceful village of Spiti Kaya's philosophical and religious beliefs begin to clash with Shiven's practical outlook on life when they meet in New Delhi. But strangely she becomes drawn to this man. As matters from the murder case gets complicated, it becomes unsafe for Lamho and Kaya to stay in Delhi. It is now up to Shiven to take these two people safely back to Spiti. But during their escape from Delhi, Shiven suffers from serious injuries. So when they reach their destination, he is forced to stay with the monks in Spiti. As time passes, he manages to come close to Kaya, much to her father's dismay. But on their trail are certain people who would stop at nothing to get their hands on these three characters. Kaya must now make a choice. She either follows her heart which will give her happiness in this birth or sacrifice everything for a better future at a higher level after reincarnation. Udita Goswami makes her debut in Paap Paap (meaning Sin), sees the debut of model Udita Goswami into Bollywood.

The film has some soulful tunes composed by Anu Malik and some Pakistani composers who do wonders to the music of the film by bringing about a variety of music never seen before in a Hindi movie.