In a sinister cabaret called "Madame Leander's," Sybille, the beautiful star attraction, sings her trademark chanson of "a romance that's false." However, she does not adhere the warnings of her own song and falls for a handsome young patron who frequents the club. She agrees to a horrific sacrifice with club's macabre owner in order to pursue the man she loves, but in the end the creditor must always be repaid... One way or another.