The story revolves around a 28-year-old man named Muthusamy, who lives a carefree and flirtatious life in Coimbatore. He earns his living by doing odd jobs and spends most of his time with his friends, enjoying life to the fullest. Muthusamy's lifestyle is all about having fun, flirting with women, and taking risks.

However, his life takes a dramatic turn when he falls in love with a girl named Anitha, played by Anu Prabhakar. She is a strict and conservative woman who is initially hesitant to reciprocate Muthusamy's advances. As their relationship progresses, Muthusamy tries to change his ways to impress Anitha and win her heart.

One of the standout features of the movie is its portrayal of the "majnu" (flirtatious) lifestyle, which is characterized by a fun-loving and carefree attitude towards life. The film's protagonist, Muthusamy, embodies this lifestyle, which is marked by a love of parties, women, and adventure.

The movie also explores themes of love, relationships, and personal growth, as Muthusamy learns to balance his carefree nature with a more serious and committed approach to life.

"Mr. Majnu" is a 2019 Indian Tamil-language film directed by M. Rajesh and produced by D. K. Productions. The movie stars Jayesh, Anu Prabhakar, and Samrat Reddy in lead roles.

The movie showcases a unique blend of lifestyle and entertainment, highlighting the carefree and fun-loving attitude of the protagonist. The film features a range of humorous and entertaining sequences, including comedy scenes, dance numbers, and action sequences.