Cousin Dearest in Bloomington, MN

17-year-old Casey has opinions about everything. Like how his grandmother could have been a soap opera actress in another life. And his rantings only increase when his grandma is murdered the night of her 60th birthday party.
Casey must also deal with his budding romance with the next-door neighbor, Logan. However, Logan's mother disapproves of their relationship because of Casey's grandmother being murdered. Disapproval be damned, though. Casey and Logan date despite Logan's mother's initial skepticism.
If life weren't complicated enough, Casey and Logan work together to investigate who killed Casey's grandma. But the killer is watching Casey and Logan. So, Casey and Logan must act quickly if they want to solve the case. If they don't, Casey and Logan might die next.