After visiting her aspirational long-distance boyfriend in Italy, writer Arabella returns to London, where she is greeted by a deluge of frantic messages from her literary agents. With a matter of hours left to finish a draft of her second book, she plans to pull an all-nighter - but is soon tempted to join a friend on a night out.

A tumultuous day finds Arabella reassessing a sexual encounter with Zain and, following a promising new lead in the investigation, opening up to Biagio about her assault. Later, after a meeting with Susy Henny, Arabella threatens to break the internet when she goes off script at a writing summit. Meanwhile, Kwame's prompted to report his own assault to the police.

Arabella's obsession with a fellow young author, Della, leads to unexpected progress on her book, despite a devastating setback. Kwame wades into uncharted waters with Tyrone and attempts to make amends with a disgruntled ex-flame. Terry has some luck in work and romance – and joins Arabella in staking out the bar where she was spiked.