As Jeffrey delves deeper into the mystery, he encounters a vigilante known as "Anniyan" (someone who is like an enemy or an adversary), who seems to be behind the letters. The vigilante, it turns out, is someone from the future who has traveled back in time to prevent crimes and shape the future.

"Anniyan" and "Thamilogi" are two separate entities that seem to be connected in your query. Let's explore them individually and then see how they might relate. "Anniyan" is a 2005 Indian Tamil-language psychological thriller film directed by Shankar, starring Chiyaan Vikram, Preity Zinta, and Prakash Raj. The film was a major critical and commercial success, known for its unique storyline and memorable characters.

The story revolves around an ordinary man, Jeffrey (played by Chiyaan Vikram), who leads a mundane life in Chennai. His life takes a dramatic turn when he starts receiving mysterious letters from an unknown sender, who claims to have been sent from the future. The letters detail various crimes and murders that are about to occur, prompting Jeffrey to take action to prevent these crimes.