Hercule Poirot, a famous Belgian detective, who has an impeccable knack for getting embroiled in a mystery, solves crimes along with Captain Hastings and Scotland Yard Chief Inspector James Japp.
As WWII rages, DCS Foyle fights his own war on the home-front; investigating crime on the south coast of England. Later series, see the retired detective working as an MI5 agent in the aftermath of the war.
Set from 1965 into the 1970s, the show follows Endeavour Morse in his early years as a police constable. Working alongside his senior partner DI Fred Thursday, Morse engages in a number of investigations around Oxford.
When Eliza Scarlet's father dies, he leaves her penniless, but she resolves to continue his detective agency. To operate in a male-dominated world, though, she needs a partner - step forward a detective known as the Duke.