The adventures of your average hard-boiled detective and his secretary. Assuming of course they are a shape-shifting wizard and his dragon companion. Dio and Flagon race through time and space and deal with all manner of creatures including un-dead, talking cats, monsters, un-paid landlords, dysfunctional socialites, mad scientists and government agents to get to the bottom of the case. Dio always gets his man! Or whatever the creature turns out to be.