The killer was recorded in Berlin by the second incarnation of the band to be based in the German capital. Core members Simon Bonney and Bronwyn Adams were joined by Frederic Lyenn (Piano, Bass, Synth), Donald Baldie (Guitar), Georgio Valentino (Synth, Guitar), Chris Hughes (Drums, Percussion) and Joshua Murphy (Piano, Guitar), and for the first time they worked with a producer, the legendary Martin J. Fiedler, who also added Synth and Mellotron to the album.