I'm not sure which specific 'The Lair based on true story' you are referring to. There could be many works with such a name. It could be a movie, a book or something else. If it's a movie, it might be about a real - life event that has been dramatized for the screen.
Since I don't know the exact 'The Lair based on true story', I can only speculate. It could be a story that delves into a secret place or situation that actually occurred. For example, it might be about a hidden underground lair that was part of a criminal operation in real life. The creators might have done research to accurately portray the setting, the characters involved, and the events that took place in the lair. They would use the facts from the true story as a foundation and then build on it with fictional elements to make it more exciting and appealing to the audience.
Well, without more information about this 'The Lair based on true story', it's difficult to give detailed information. However, generally speaking, if it's based on a true story, it probably aims to bring a real - life situation, perhaps a mystery or a historical event, to the audience in an engaging way. Maybe it involves real people's experiences that have been adapted to fit the medium, like a thriller set in a real - world location with real - world motives behind the actions.