Former Downton Abbey actress Joanne Froggatt will attend a preview of her new ITV drama Liar next month.

The event will take place at BFI Southbank on Tuesday September 19.

Froggatt stars alongside Ioan Gruffudd in the psychological thriller following a school teacher whose life is about to unravel.

The six-part ITV series sees Froggatt play Laura Nielson, a bright and dedicated teacher who is only just adjusting to being single and getting back on the dating scene.

She meets Andrew (Gruffudd), a renowned surgeon whose son is a student at Laura’s school. Their initial chemistry leads to a seemingly innocent date.

But the pair each have their lives turned upside down by a series of accusations as that date has far-reaching consequences. Secrets and lies unravel – until the truth reveals itself.

Tickets for the screening and Q&A are available through the BFI’s website.