1940s Wichita, Kansas When Private Detective Dwayne Wheeler returns from his honeymoon, he receives an unexpected call from Agent Harry Philbin of the Kansas Bureau of Investigation. With the KBI overloaded by narcotics crimes, Philbin offers Dwayne a temporary position-investigate several mysterious farmhouse burglaries. Accepting the job, Dwayne discovers that the farmers have never seen fit to lock their front doors...