The composer Willy Brezza was commissioned to write the soundtrack of "Perchè si uccidono" (this recording includes 5 instrumental tracks and 1 song), while the remaining pieces were composed by Fabio Frizzi The whole soundtrack was performed by the Goblin, that this time changed their name to "Il reale impero britannico". For this Cd the master tapes of the extremely rare 1976 LP were used. Even if this CD does not contain any bonus track s it is nevertheless a welcome addition to the Goblin discography, as the original edition was limited pressing.