It's 1965 and teenage Frances Adams is at an English country fair with her two best friends. But Frances's night takes a hairpin turn when a fortune-teller makes a bone-chilling prediction: One day, Frances will be murdered. Frances spends a lifetime trying to solve a crime that hasn't happened yet, compiling dirt on every person who crosses her path in an effort to prevent her own demise. For decades, no one takes Frances seriously, until nearly...

Fraternal twins Nikki and Nora are forced back into each other's lives when they inherit a detective agency. As they solve a murder, they realize that their differences could be their greatest advantage.