Sam Holloway has survived the worst that life can throw at you. But he's not really living. His meticulous routines keep everything nice and safe - with just one exception...

Three nights a week, Sam dons his superhero costume and patrols the streets. It makes him feel invincible - but his unlikely heroics are getting him into some sticky, and increasingly dangerous, situations.

Then a girl comes into his life, and his ordered world is thrown into chaos ... and now Sam needs to decide whether he can be brave enough to finally take off the mask.

Both hilarious and heart-warming, this is a story about love, loneliness, grief, and the life-changing power of kindness.