We all have mental health and keeping well is a challenge. Many of the people closest to us have battles with theirs that we could never even imagine, but being an ally when we are able to, can help stop those feelings of darkness in others. We are so often much stronger than we think we are.

What's the worst word in the English language? It's not what you think. It's not four letters, but nine - "malignant". One month shy of her 36th birthday, my wife Carolina handed me the results of her biopsy, which indicated advanced breast cancer. I felt like the earth was swallowing me up. It was October 11, 2011.

As we spent time with the families of these murderers, one thing was clear: their lives had appeared normal up until the point they killed someone, with no warning signs of what was to come. Unlike men, most women who kill have no history of criminality. Their crimes seemed like aberrations, moments of madness.

Never has it been more important to celebrate the contribution woman make to our rich and diverse culture, and although fiction's primary purpose might be to entertain us, we also know it teaches us empathy and opens up worlds and peoples we might never encounter or understand any other way. And that has never felt more important.

Whatever plans you have for tonight, I suggest you cancel them and instead go to see Denial at the cinema. It tells the story of how one of the leading Holocaust-deniers, David Irving, was exposed as deliberately falsifying history.