British melodrama maven Jimmy Sangster adapted his screenplay for Intent to Kill from a novel by Michael Bryan. Richard Todd plays a Montreal doctor who is in love with his pretty American assistant Betsy Drake. Todd is saddled with a viper-tongued wife (Catherine Boyle), who wants him to leave the provinces for a posh practice in London. The good doctor's problems are intensified when he is obliged to perform delicate brain surgery on a hated South American president (Herbert Lom), who has been targeted for assassination by a "trusted" colleague (Carlo Giustini). Only the intervention of police detective Paul Carpenter saves Todd from stopping a bullet himself. The heated intrigues of Intent to Kill are contrasted by the wintry Montreal exteriors.