Arulnithi's Diary was recently in the news for being acquired by Udhayanidhi Stalin. The film's trailer was released today at 7 PM. 

The trailer of the film showcases Arulnithi as an investigation officer, enquiring a series of accident cases on a hill station. 

Diary is directed by debutant Innisai Pandiyan and has music by Ron Ethan Yohann. It has cinematography by Arvinnd Singh and stars Pavithrah Marimuthu and Jaya Prakash in important roles. 

Arulnithi who was last seen in Dejavu and D- Block has Demonte Colony 2 and a film with Gowthamraj in the lineup. 

There is no release date for Diary yet.