ABUSUS AD MORTEM was a Helsingborg Black Metal combo created by guitarist Johan Lindberg and drummer Rafael Andersson. Both Lindberg and Andersson's prior history saw terms with DET GLÖMDA and MANDATORY CARNAGE. The guitarist had also served with EPITAPH OF ETERNITY whilst Andersson had membership of SABBATIC GOAT.

Early personnel included guitarist Anders Stigert, guitarist Magnus Thor and bassist Peter Larsson, the latter two going on to join Gothic Metal band DISROMANCE. When ABUSUS AD MORTEM folded in 2001 both Lindberg and Andersson forged the 9TH PLAGUE.