Mercury is a 2018 Indian horror thriller film written and directed by Karthik Subbaraj. It stars an ensemble cast including Prabhu Deva, Sananth Reddy, Remya Nambeesan, Indhuja Ravichandran, Deepak Paramesh, Shashank Purushotham, and Anish Padmanabhan, amongst others. Subbaraj presented the film under his own production banner Stone Bench Creations, whilst Jayantilal Gada of Pen India Limited distributed and co-produced the film. It is about the story of five friends who were terrorised by the ghost of a victim, maimed from mercury poisoning. Karthik Subbaraj insisted on doing a silent film after being inspired by Pushpaka Vimana (1987). He came up with a script of a film based on Kodaikanal mercury poisoning incident and planned up as a dialogue-less film. It was announced in May 2017, with production began the same month and completed within July 2017. Filmed across Chennai, Pondicherry, Kodaikanal, and Kamuthi, the background music for the film is composed by Santhosh Narayanan, with cinematography handled by Tirru and edited by Vivek Harshan, whereas Kuna... ()