A fine moonlit night) is a 2023 Indian Malayalam-language slasher film directed by Murphy Devasy in his directorial debut.

The film stars Chemban Vinod Jose, Baburaj, Sai Kumar, Binu Pappu, Jinu Joseph, Ganapathi S. Poduval, Rony David Raj, Sajin Cherukayil, and Nithin George.

The film follows a group of friends who arrive in Shimoga as part of a business trip and the unforeseen incidents that occur there.

The music was composed by Kailas Menon, while the cinematography and editing were handled by Ajay David Kachappilly and Shyam Sasidharan.

Meanwhile, Kurien, an operating manager at Seamen in Abu Dhabi, borrows a large sum from Achayan and struggles to pay the interest.

Kurien travels to Marayur with his aunt's son, Paul Joseph, a tourism consultant, and meets Achayan.

He learns that Achayan plans to construct a new shopping complex on the land he pledged and assures to repay the money within the agreement's expiration date.

Peter expresses his interest in finding a good buyer, as they were fed up with doing business with Achayan, who did not pay them on time.

[13] The second-look poster was released on 4 June 2023, featuring Chemban Vinod Jose, Baburaj, Jinu Joseph, Binu Pappu, and Ganapathi.

[23][24] Gopika ls of The Times of India gave 3 out of 5 stars and wrote, "Murphy Devasy's debut Nalla Nilavulla Rathri is a watchable movie with some moments of brilliance sprinkled all over.

"[26] Arjun Ramachandran of The South First gave 2.5 out of 5 stars and wrote, "Nalla Nilavulla Raathri is a thriller that loses its pace at a point but manages to entertain the audience with its technical aspects.

"[27] Anandu Suresh of The Indian Express gave 0.5 out of 5 stars and wrote, "Nalla Nilavulla Rathri can be seen as a slasher film; however, the only thing it truly slashes is the viewers' bank balances, particularly when the month-end is here.

"[28] S. R. Praveen of The Hindu wrote, "The character building and context setting by Murphy Devassy in the first half is wasted as the movie pivots to become a slasher-home invasion thriller.

"[29] Princy Alexander of Onmanorama wrote, "Had makers toned down the violence and focused more on creating a convincing narrative, 'Nala Nilavulla Rathri' would have been a better watch.