How far can you believe the images people show of themselves on social media? That’s the question posed by psychological thriller Chloe which starts on BBC One on Sunday 6 February.

As one young woman's Instagram obsession forces her to adopt a fake identity in order to investigate the disappearance of a popular blogger, reality comes crashing down around her.

Here’s everything you need to know about BBC One series Chloe.

What is Chloe about?

Erin Doherty in Chloe BBC/Mam Tor

Working in a temp job and still living with her mum, Becky (played by Erin Doherty, above) is a young woman dissatisfied with her life, so she escapes reality by obsessively following the picture-perfect lives of others on Instagram.

But when the woman behind one of her favourite accounts, Chloe, suddenly dies, Becky decides to take the investigation into her own hands.

She restyles herself as confident, fascinating alter-ego Sasha and infiltrates Chloe’s close-knit group of friends to look for answers, but soon risks losing herself in the addictive fake life she is leading.

Is there a trailer?

There is. Meet Becky and the other characters in Chloe by watching the trailer below:

Who stars in Chloe?

Jack Farthing in Chloe BBC/Mam Tor

Erin Doherty, best known for playing Princess Anne in The Crown, stars as Becky, while Poppy Gilbert (Stay Close) plays Chloe.

Other cast members include Billy Howle (The Serpent), Pippa Bennett Warner (Gangs of London, below), Jack Farthing (Poldark, above), Akshay Khanna (Grace), Brandon Micheal Hall (Search Party) and Alexander Eliot.

When is Chloe on TV?

Pippa Bennett Warner in Chloe BBC/Mam Tor

The series, created by Sex Education writer and director Alice Seabright and filmed around Bristol, will be six episodes long and will be on BBC One and the BBC iPlayer in the UK and Prime Video internationally.

Chloe begins on BBC One at 9pm on Sunday 6 February. 

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