Edge of Sanity was a Swedish death metal band whose work often delved into experimental territory shifting from traditional death metal to melodic and progressive death metal. Edge of Sanity are regarded alongside Opeth as being the first to fuse extreme metal styles like death and black metal with genuine progressive rock. Having formed in 1989 in Finspång, Sweden, Edge of Sanity asserted themselves as a solid death-metal outfit with their debut release "Nothing But Death Remains"