Panos Kotzathanasis of Asian Movie Pulse praised the film stating that, "December is an excellent film that works on a number of levels and [is] definitely Chauhan's best as of yet." Simon Crowe, an executive producer of December, stated that, “After a wave of Scandinavia programming, and now most recently Korean films and television with Parasite, Snowpiercer, Train To Busan and record-breaking series Squid Game, we believe Japanese programming could be the next big thing. Not just anime, but film and television after Drive My Car, Gensan Punch, and now December.”[8]
Roxy Simons of View of the Arts rated the film a 4 out of 5 and stated that, "December is a human drama, and so much of the emotional strife that viewers feel is a result of the pain depicted by the film’s main trio."[9]
Emma Steen of Time Out Tokyo stated that, "As for the production itself, Chauhan's latest cinematic work is a courtroom drama that is not only exquisitely filmed – courtesy of Peter Jensen’s cinematography – but also captivates the audience as it grapples with the fine line between justice and revenge."[10]
Richard Gray of The Reel Bits rated the film a 4 out of 5, stating that, "Anshul Chauhan delivers another understated character study, which works in part due to the stellar performances and a measured understanding of the tensions that lay just beneath the surface of human interaction."[11]