Frank Moore killed 34-year-old Stewart Taylor and left former partner Lynsey Methven, 31, for dead after a “remorseless” assault on February 7 this year.
He was told at the High Court in Edinburgh today he would have to spend at least 22 years behind bars before he can be considered for release.
Moore, 43, had stalked the couple for weeks, subjecting them to intimidation and threats before flying into a jealous rage and launching his murderous attack at Ms Methven’s home in the Grange area.
He inflicted severe injuries on both victims, leaving them unconscious, before fleeing the property.
The couple, who had hoped to share a happy future, were discovered by firefighters who were called to deal with a blaze that had broken out in the Chalmers Crescent flat following the attack. Mr Taylor died a short time later of his injuries.
Moore was found guilty at the High Court in Edinburgh last month of the murder of Mr Taylor and attempted murder of Ms Methven.