You could not find a more incisive, relevant, or timely documentary on the personality, behavior, stability, and impact of Donald Trump, who as U. S. President and Commander-in-Chief has wowed his followers with his out-of-the-box domestic and foreign policies while at the same time has terrified and enraged millions with his racism, his power plays, and his similarities to two autocrats from history — Adolf Hitler and Benito Mussolini.

In his debut as a documentary director, Dan Partland has done an astonishing job interweaving substantive interviews with articulate psychologists who have identified Trump's mental state as "malignant narcissism," the most destructive personality type. It is characterized by four key symptoms:

* Narcissism
* Paranoia
* Anti-social personality disorder
* Sadism

These experts are part of The Duty to Warn Coalition, an association of mental health professionals from psychiatry, psychology, medicine, public health, public policy, and social work, who have concluded and advocate that Donald Trump is psychologically unfit and they have an ethical responsibility to inform the public of imminent danger. Trump's personal comments and the actions he has ordered offer the basis of a psychological diagnosis outside a clinical setting because they are all observable behavior by a very public figure. As examples supporting their analysis, they talk about his lack of empathy, his problems relating to people, his approval of family separations and locking children up at the border, and his outrageous Twitter jabs.

A screenshot of one of Donald Trump's tweets.

The mental health professionals' views are backed up by lawyers, academics, and former intelligence officers. Insights into Trump's personal life and Presidential style are also offered by former White House communications director Anthony Scaramucci and lawyer George Conway whose wife, Kellyanne, recently announced she was stepping down as the President's long-standing advisor.

The three most revealing insights in Unfit: The Psychology of Donald Trump ponder his charismatic presence which have created a loyal band of fans who hang on to every word he says about Democrats, immigration, racial tensions, and many other issues. Two historians trace what we can learn from history about the development of autocratic leaders and their undermining of democratic societies. Film clips establish Trump's affinity to other authoritarian leaders around the world today; instead of opposing them, he is emulating their behavior and policies. Worst of all, we are reminded that the President has the power on his own to launch nuclear weapons against any country that offends him. And once he gives the command and the military follows the order, there is no way to stop a catastrophe.

A young girl holds up a sign asking Donald Trump to stop being mean.

This documentary may not change the minds of anybody in Trump's base, but it does give those who are concerned about the possible results of his mental state the language to discuss his behavior — all very evident in his rallies, press conferences, interviews, and social media exchanges. The film prioritizes science over politics while raising an alarm about a dangerous and growing cultural divide.