Time Out says
One of Godard's most sheerly enjoyable movies, a dazzling amalgam of film noir and science fiction in which tough gumshoe Lemmy Caution turns inter-galactic agent to re-enact the legend of Orpheus and Eurydice by conquering Alpha 60, the strange automated city from which such concepts as love and tenderness have been banished. As in Antonioni's The Red Desert (made the previous year), Godard's theme is alienation in a technological society, but his shotgun marriage between the poetry of legend and the irreverence of strip cartoons takes the film into entirely idiosyncratic areas. Not the least astonishing thing is the way Raoul Coutard's camera turns contemporary Paris into an icily dehumanised city of the future.
Cast and crew