Demonte Colony 2 (also marketed as Demonte Colony II: Vengeance of the Unholy) is a 2024 Indian Tamil-language supernatural horror thriller film directed by R. Ajay Gnanamuthu, and produced by Bobby Balachandran under the banner of BTG Universal, together with Gnanamuthu Pattarai and White Nights Entertainment.

The sequel to Demonte Colony (2015), Arulnithi stars alongside Priya Bhavani Shankar, Arun Pandian, Antti Jääskeläinen, Tsering Dorjee, Meenakshi Govindarajan, Sarjano Khalid and Archana Ravichandran.

The film has music composed by Sam C. S, cinematography handled by Harish Kannan and editing by Kumaresh D. Demonte Colony 2 was initially scheduled to release in September 2023, but was postponed due to post production delays.

On 6 June 2009, Samuel "Sam" Richard, a cancer survivor, is found hanging, alongside his friends who fell from an apartment building.

Six years after Sam's death, Debbie on her way to her Chinese restaurant inauguration, witnesses an astrologer's suicide on 6 June 2015,[a] and stumbles upon Srinivasan "Srini".

Meanwhile, in Hyderabad, Raghunandhan and his half-sister Aishwarya contest in the court against Srini, their estranged brother for inheriting 70% of their expired father's ₹2,500 crore (equivalent to ₹38 billion or US$440 million in 2023) worth estate.

Richard and Debbie's investigation leads to a mysterious book, Unsung King of a Fallen Kingdom, previously read by Sam and Raghavan (Srini's friend).

The daoshi begins rituals as the chain heats up, causing Raghu distress, and Richard is choked to death.

As they plan to break the glass dome above the Mahakala statue, Sam's spirit appears among the bats, revealing Debbie's pregnancy and asking for help.

Debbie reveals Demonte's true intention of performing the sacrifice for a 15th-century Portuguese king, confirmed by Adithi.

In a post-credits scene, Srini resolves to find him, his family, and their connection to Demonte, and end this sinister cycle to rescue Raghu, and break the curse by 6 June 2027.

[10] The companies made a public announcement on 30 November 2022, however,[11] revealing that Gnanamuthu had replaced Venky in directing the project.

[13] On 8 January 2023, the makers had released a 2-minute video, which revealed the cast and crew, which includes Antii Jaaskielainen, Tsering Dorjee, Arunpandian and Muthukumar in the cast roles, while composer Sam C. S., cinematographers Harish Kannan and Deepak Menon and editor Kumaresh D in the crew roles.

[20] By August, Bobby Balachandran of BTG Universal had acquired the film's complete rights, and would be credited as producer.

[21] The soundtrack and background scores for the film is composed by Sam C. S. in his fourth collaboration with Arulnithi after Iravukku Aayiram Kangal (2018), K-13 (2019), Thiruvin Kural (2023); maiden with Ajay.

[2] Harshini SV of The Times of India rated the film 3.5 out of 5 and wrote, "Besides the mostly engaging screenplay and performances, what urges you to overlook the flaws is how Demonte Colony 2 is arguably one of the most compelling sequels to come out in Tamil cinema and that we would be happier even if the mystic chain is stolen yet again".

[28] Avinash Ramachandran of The Indian Express rated it 2.5 out of 5 and wrote, "Apart from the supernatural, I quite liked how Ajay sets up Demonte Colony 3 with newer villains, who stay true to the horror genre.

[29] Suhas Sistu of The Hans India rated it 3 out of 5 and wrote, "Demonte Colony 2 is a worthy sequel that delivers an engaging and thrilling horror experience.

"[31] News18.com curated the audience response and wrote, "Demonte Colony 2 Review: Fans Praise Horror Sequel And Anticipate A Third Part" and based on the audience reviews they declared it as a hit in both the regional languages and wrote, "Demonte Colony was a huge hit in both Telugu and Tamil which was released in 2015 and took the box office by storm.