EastEnders launches behind-the-scenes feature about Stacey's breakdown

Paranoid Stacey is reluctant to trust her boyfriend - and she has a shocking secret to tell him… (Image credit: BBC/Gary Moyes)

Stacey Branning gave birth to Kush's son Arthur on EastEnders just before Christmas, but the birth has triggered deep-rooted psychological problems.

This week Stacey is in the grip of full postpartum psychosis, a condition during which sufferers have extreme mood swings and hallucinations. Stacey's conviction that Arthur is the son of God led to a rooftop drama in which her and Arthur's lives were endangered.

In a new exclusive BBC iPlayer featurette, fans are given a behind-the-scenes look at the making of Stacey's storyline, including interviews with Lacey Turner (Stacey Branning), James Bye (Martin Fowler) and Dominic Treadwell-Collins (Executive Producer).

The featurette also explores the research behind the storyline and gives an insight into how Stacey's story was created and brought to screen.

Watch Stacey Branning – On the Edge here at 8.30pm. immediately after the end of the episode.

Patrick McLennan is a London-based journalist and documentary maker who has worked as a writer, sub-editor, digital editor and TV producer in the UK and New Zealand. His CV includes spells as a news producer at the BBC and TVNZ, as well as web editor for Time Inc UK. He has produced TV news and entertainment features on personalities as diverse as Nick Cave, Tom Hardy, Clive James, Jodie Marsh and Kevin Bacon and he co-produced and directed The Ponds, which has screened in UK cinemas, BBC Four and is currently available on Netflix.

An entertainment writer with a diverse taste in TV and film, he lists Seinfeld, The Sopranos, The Chase, The Thick of It and Detectorists among his favourite shows, but steers well clear of most sci-fi.