Online dating can be a roller coaster no matter how old you are, which Helen Mirren and Sir Ian McKellan prove in the tense trailer for Bill Condon's The Good Liar.

The drama, which is based on the critically acclaimed novel by Nicholas Searle, sees Mirren playing wealthy widow Betty, who thinks she's finally found a worthy connection with a charming, handsome older man she met online. Unfortunately the man in question is career con artist Roy (McKellen), who thinks he's hit the jackpot when he realises how much Betty is worth. Soon his plans to swindle her out of her fortune are complicated when he develops true feelings for her, and things begin to spin treacherously out of control.

Quantico's Russell Tovey and Downton Abbey actor Jim Carter also star in The Good Liar, which arrives in theatres on Nov. 8.