Wunmi Mosaku

ITVX unveils first look at mysterious comic thriller Passenger

Wunmi Mosaku stands in a frosty woodland with a flashlight in ITV's Passenger

Across six parts, Passenger follows a Former Met Police Detective called Riya Ajunwa (Wunmi Mosaku) as she investigates a series of strange crimes in the fictional small Northern town of Chadder Vale.

Riya is listless. She first arrived in the declining town five years ago and has been searching for that 'one big crime' that will revitalise her career ever since.

Then one night a local girl, Katie Wells (Rowan Robinson), mysteriously disappears. She reappears the next day ostensibly safe and sound, but for Riya, if not the locals, none of it sits right.