Locked up: Famke Janssen will direct a psychological thriller for Netflix

According to Deadline, X-Men actress Famke Janssen has officially signed on to star in Netflix's upcoming psychological thriller titled Locked In. She will be joined by Sanditon star Rose Williams, who will play the stepdaughter newly married from Janssen. Production is already underway in the UK.

Locked In will be Nour Wazzi's feature debut. It is written by Rowan Joffé 28 weeks later. In addition to Janssen and Williams, it will also star Finn Cole (Peaky Blinders), Alex Hassell (Violent Night) and Anna Friel (Pushing Daisies).

The film will center on an unhappy young bride, Lina, who goes against her fragile and damaged stepmother, Katherine,” reads the synopsis. “An affair takes Lina on a journey of secrecy, betrayal and murder – and a plot to seemingly destroy her. But who is the real victim, and who can she really trust?"

Locked In is produced by Nicky Bentham, with Alison Jackson as executive producer. It comes from Neon Films and Gaumont.

Janssen is best known for portraying the role of Jean Grey/Dark Phoenix in 20th Century Fox's X-Men franchise. She will also be seen next in the action thriller Boy Kills World produced by Sam Raimi.