O2 is an Indian Kannada-language medical thriller film directed by Raghav Nayak & Prashanth Raj and produced by Ashwini Puneeth Rajkumar under PRK Productions. The film stars Ashika Ranganath as ...

O2 is billed as a medical thriller; In an ordinary science-based film, the makers would have packed the plot with information-heavy drama anchored by brainy people with no emotional side to them. But ...