Room No. 106 is a tense crime thriller inspired by a real, unsolved case that shocked Sri Lanka - the discovery of a young woman's body in a suitcase, a mystery that left investigators and the public with more questions than answers. The film follows the events leading up to the crime and the investigation that followed, exploring a secret relationship that ended in tragedy inside a hotel room. Rather than sensationalizing the case, it takes a hard look at the media frenzy, the search for the truth, and the human cost behind one of the country's most haunting real-life stories.