It has been nearly a year since the murder and kidnapping happened at the McPherson mansion. Everything has returned to being quiet and normal around the mansion until a package is delivered to Alex McNeil.

Inside the carefully wrapped package, Alex finds an expensive-looking antique necklace. There is also a note inside the package that reads, "Mr. McNeil, you have exhibited the ability of being a good investigator. Find out who stole the necklace, and you will find out who murdered her."

Investigation determines that the necklace belonged to missing Bisson City police sergeant Jennifer Thomson, who was presumed to have been kidnapped and murdered 10 years ago. Alex takes a leave of absence from the McPherson mansion, and is hired by the Bisson City police force on a short-term-employment contract. Alex teams up with his old police partner Stephanie Foster, and they renew their close friendship while investigating what happened to their missing colleague, Sergeant Thomson.