TV insiders have revealed that ITV are already hoping that the show will become the new Broadchurch in terms of the broadcasters success, having attracted an audience of five million viewers.
A show source said: “The vision is already there for this to continue beyond series one.
“The hope was always that this show could become a major drama for ITV, and that looks to be happening.”
They continued to the Sun: “The wheels are already in motion for it to come back.”
Actress Joanne also hinted that writers Harry and Jack Williams have already got a storyline in mind for series two.
Speaking on Radio 2, the 37-year-old explained: “There’s definitely a satisfying conclusion to this series at the end, I promise.
“You won’t invest six hours and be disappointed. It won’t let you down.
“But there’s also a bit of an offshoot that makes for a possible furthering of the story, should it be successful.”
She added: “But there’s an absolute conclusion to this one.”
It comes as leading Joanne revealed to Express.co.uk that she almost turned down her role over having to play a rape storyline for a second time.
Liar continues tomorrow on ITV at 9pm.