The blue hour is "a time of day when the sun has just set or is about to rise, when the sky overhead takes on a deep blue color, and when the landscape is suffused with bluish light." "The blue hour doesn't even come close to lasting a full hour. In reality, what photographers call the blue hour really only lasts about 20 minutes. The blue hour generally lasts the 20 to 30 minutes just after sunset and just before sunrise." Cal and Sol have been friends since middle school. Now, they are high school seniors, and their time seems to be constantly running out. They come from totally different backgrounds, but they are still inexplicably drawn together. Will their love last?