After an argument at a party with her sister, Lily heads out alone and accepts a lift from Rick, unaware of his dark intentions. But when she doesn't return home, a frantic police search ensues as Lily wakes up trapped in his cellar.
Nearly a year after her disappearance, Lily remains trapped and pregnant in Rick's twisted dollhouse. Abby numbs her grief in alcohol, struggling with her mum, Eve, and a growing attraction to Wes, Lily's boyfriend.
Five years after her kidnapping, Lily finally escapes - but Rick denies everything and twists the truth. Haunted, Lily struggles to reintegrate as Abby wrestles with her sister's return and her secret relationship with Wes.
Rick, now in prison, offers to talk on one condition: he'll only speak to Lily. Conflicted, Lily must weigh the danger of putting herself in the crosshairs of her captor. Meanwhile, Abby, trying to focus on her family, hides her pregnancy.
Zoe promises to stand by Rick so long as he says nothing that could endanger Alice. As Eve steels herself for the trial, Lily refuses to attend and retreats further into herself. Meanwhile, Abby uncovers a shocking truth about Alice.
With Rick on the run, a terrified Lily fears for her life. Heartbroken by her sister's pain, Abby takes things into her own hands, hatching a daring plan as the Riser family fights to reclaim their lives.
