Nick Bannister is the most private of investigators, digging up memories from the minds of his clients. Living in a sunken Miami threatened by rising sea levels, he accepts a job that will change everything. The woman who hires him for a seemingly simple task soon becomes the love of his life. However, once she vanishes, Nick sets out on an unexpected and dangerous journey through Miami's underground to find her. Along the way, he stumbles across revelations that show he may not have known his love as well as he thought.