The Fourth Face) is a 2021 Indian techno-horror thriller film directed by Ranjeet Kamala Sankar and Salil V for the screenplay written by Abhayakumar K and Anil Kurian.

[3][4] The film stars Manju Warrier, Sunny Wayne, Alencier ley Lopez, Niranjana Anoop, Babu Annur, Shyamaprasad and Rony David in lead roles.

Chathur Mukham is the story of that nightmare, when over acceptance and dependence on technology can take a turn for the worse, leaving one's best friend as the worst enemy.

Thejaswini is from a middle-class family and believes that every girl should have a good education and attain financial stability before her nuptials.

These occurrences which seem way out of the normal, start to impact Thejaswini's work, self and even her body, so much so that she tries to get rid of the new purchase by various means, only to find it pulling her back to itself with greater force.

Clement, though shaken due to the unexplainable incidents, consults his friend Ramachandran, who advises him to keep aside the ego of a scientist and accept the issue to arrive at an out-of-the-box solution.

The desk lamp falls onto the computer keyboard, hitting the Enter key, and thus activating the copy of the Liza phone.

[13] The second song from the film album, the spooky Paathiyil theerunno, was released by Manorama Music on 8 July 2021 in YouTube.

[20] S R Praveen of The Hindu noted that the film "has a few surprises up its sleeve" and added that "there is often an attempt to provide a scientific explanation for the happenings on the screen, with some of the characters even poking fun or dismissing the traditional Malayalam horror movie ingredients of black magic and exorcism".

"[19] Nirmal Narayan from IBTimes said that it is a "movie made with International standards, and it has all the elements to glue the audiences in their seats".

Anna Mathews of Times of India criticised that the makers have "created some scary moments, but the horror elements are not scripted strongly and 'logically' enough", but praised Manju Warrier's performance.

She noted that "Manju Warrier carries the role like only she could, being light-hearted when needed and shifting gears to feeling fearful in the most convincing manner.

and summarized that "Taking a diversion from the usual paranormal films, the writers and the directors have laid a foundation for something new in the genre.

The film is technically prosperous, with great cinematography and fine VFX, but an engaging screenplay could have done wonders to this flick.

"[23] Sanjith Sidhardhan from OTTPlay noticed that "directors and scriptwriter to come up with novel concepts that movies like Ezra had employed, while ensuring that it passed the ‘logic’ test of the audience" and added that "Chathur Mukham also serves as a reminder of the value of relationships and the world around us that people seem to forget while obsessed with their virtual life.

"[24] The Free Press Journal noted that Chathur Mukham decently scores as a supernatural thriller because of its novel premise, likable performances, and a focused screenplay that does not have any forced or unrelated subplots.

It begins on a thoughtful note pointing towards the present era in which the human race is fast becoming slave of its self-invented gadgets and social networks.