Hadley Jamison doesn't know what to think when she hears that her classmate, Archer Morales, committed suicide. She didn't exactly know him, but that doesn't stop her from feeling like there was something she could have done to help him. So to Hadley's surprise, on the very night of Archer's funeral, she has a run in with Death himself and is offered the chance to go back in time to stop Archer from ending his life. The catch? She only has twenty-seven days to do it. And if Hadley doesn't succeed? Well, she doesn't want to think about that.

At the age of eighteen, everyone's blood changes colour. Whether it becomes blue, green or otherwise, the colour is either hereditary or a random, biological selection. However, when Pearl Damocles discovers that her blood is colourless - in a society where people are segregated by blood colour -, she travels to an institute for people like her with a handsome yet mysterious man named, Malik Ahmed. After months of training and planning - with a team of quirky, newfound friends and trained militants by her side - she decides begins to hatch a plan. One to bring everyone together, and abolish the inequality of the blood colours.