Four irrepressible retirees spend their time solving cold case murders for fun, but their casual sleuthing takes a thrilling turn when they find themselves with a real whodunit on their hands.

A father and daughter accidentally hit and kill a unicorn while en route to a weekend retreat, where his billionaire boss seeks to exploit the creature's miraculous curative properties.

The centuries old vampire Count Dracula comes to England to seduce his barrister Jonathan Harker's fiancée Mina Murray and inflict havoc in the foreign land.

The bodyguard Michael Bryce continues his friendship with assassin Darius Kincaid as they try to save Darius' wife Sonia.