Time Out says
A sourly unfunny comedy, set in Spain (local colour has the characters lisping when talking about Barthelona), with Sellers as a singing matador and Ekland as a gold-digging floozie. The ghastly plot calls for the impoverished Sellers to seduce the mercenary Ekland within three days to win a bet (his prize, the contract he yearns for as a professional crooner). He does so, at great length. Inevitably but improbably, the pair fall in love; and an even ghastlier finale has Ekland discovering the truth, Sellers performing a noble act of self-sacrifice, and bitter-sweetness reigning on the screen. Even more embarrassing than Sellers' efforts to be funny is the realisation that he is trying to be moving too.