Liar new trailer for Monday's episode shows Laura step up her desperate campaign to make sinister surgeon Andrew pay for raping her

An intriguing trailer for Monday’s episode of Liar shows Laura, played by Joanne Froggatt, step up her desperate campaign to make sinister surgeon Andrew (Ioan Gruffud) pay for raping her.

In the fourth episode of the ITV thriller, teacher Laura heads to Scotland to find out more about Andrew’s mysterious past by visiting Felicity Cassidy (The Syndicate’s Clare Higgins), the mother of Andrew’s late first wife Mary, who committed suicide.

The trailer sees a nervous Laura ask Felicity to answer her questions about Andrew but the older woman looks stunned when Laura drops a bombshell by saying, “A little while ago Andrew and I went out on a date and that evening he came back to my house and he raped me”.

How will Mrs Cassidy react and can she give Laura the help she needs? Or will Mary’s business partner and best friend Catherine McAulay (Monarch of the Glen and Wild at Heart’s Dawn Steele) be able to shed some new light on proceedings?

Excitingly, Joanne has hinted that there might be a second series of Liar, saying:

“There are even more twists and turns to come! I’ve never done a thriller before and it’s great that
 you don’t have to wait until the 
end to learn who is lying. There’s a satisfactory conclusion to the series, too, however we do finish on a bit 
of a cliffhanger…”
Liar airs on Mondays at 9pm on ITV