Series 1
In Maigret Sets a Trap, a serial killer is targeting women in the seedy district of Montmartre. With no leads and the newspapers rife with speculation, all focus is on Chief superintendent Maigret. Can he find the murderer before he kills again? The second film, Maigret's Dead Man, focuses on the murder of a gambler with connections to a brutal gang from Czechoslovakia.

Series 2
Night at the Crossroads: Maigret interrogates suspected murderer Carl Andersen for hours. But despite his best efforts, Andersen’s story never slips – he insists he’s innocent. So why was the body of a diamond dealer found on his property, in his car, killed with his gun? And why did he and his mysterious sister Else try to run away?
Maigret in Montmartre: Arlette, a stripper from one of the area’s seedy nightclubs, reports a conversation she overheard about an imminent murder. But it’s not until Arlette is found strangled that her report is taken seriously.