After a father is found dead in his family's Florida mansion, what at first appears to be suicide turns into a complex murder mystery where a mother's cryptic words and a son's suspicious behavior suggest either could be hiding a deadly grudge.

After a 911 hang-up, Pasco, Wash., police report to the caller's address and discover a beloved grandmother has been fatally shot. Detectives will combat self-defense claims as evidence of a greedy scheme comes to light.