16-year old Alan Crosthwaite is committed to a mental asylum when he takes action against an international oil company polluting the environment. The only reason he doesn't end up in prison is because the company's CEO is his father.

In therapy, Alan writes about the doomsday scenario confronting our planet, his feelings for the girl he met at a School Strike for Climate demonstration, and his family. But it's his preoccupation with the world's political and business leaders' persistent refusal to respond meaningfully to climate change that compels Alan to take one final, desperate step.

Like many of his generation, Alan Crosthwaite feels compelled to take up the fight against the looming climate change catastrophe because big business and petty politicians, worldwide, have seemingly disclaimed all responsibility for the problem.

Insanity is the disturbing story of a teenager who courageously confronts the challenge to our very survival: the rapidly accelerating and wanton destruction of our planet.