Vengeful ex-lovers, envious friends and jealousy-ridden love triangles come under the spotlight in this true crime documentary revealing what happens when the green-eyed monster turns deadly.

Just days after Hollie Gazzard had attempted to end her relationship with Asher Maslin, her life was cut tragically short as the jealous ex attacked.

When the 1983 case of Joette Smith, whose body was found in the San Lorenzo River, was reopened, evidence pointed to former suspect, Eric Drummond.

When Daniel Bezemer suspected girlfriend Justine Vanderschoot of cheating, he lured her to a park-and-ride - before exacting his revenge. 

Vengeful ex-lovers, envious friends and jealousy-ridden love triangles come under the spotlight in this true crime documentary revealing what happens when the green-eyed monster turns deadly.

When Molly McLaren finally worked up the courage to leave boyfriend Joshua Stimpson, she finds new independence, which riles up a deadly envy within her ex.

When Shirley Pierce's fiancé finds her murdered in the bathtub, detectives investigate the ransacked house.

When Ezra McCandless is found bruised, she accuses boyfriend Alex Woodworth before asking to see her ex, but has this love triangle turned fatal?

When Yessenia Suarez and her two children were reported missing after a confrontation with her jealous husband, fears for their safety grew.

After teacher and mum of two Kay Baker is found murdered, police discover her partner at the end of a trail of blood - but is he a victim or a suspect?

When Ryan Poston is shot and killed by his on-and-off girlfriend Shayna Hubers, she claims self-defence - but was it really an act of jealous rage?

When Patrick De La Cerda is shot and killed on his own doorstep, his fiancé Jessica suggests a jealous ex-boyfriend may be behind the attack.

When Falonda Simpson and her daughter Davonda Washington are found murdered, investigators realise the culprit may be very close to home.