Insomnia, Happy Birthday!

A chilling premiere. As her 40th birthday approaches, Emma stops sleeping. She realises she is repeating the same unsettling behaviour as her mother, who had a psychotic break on her own 40th.

After their mother unexpectedly dies, Emma and Phoebe are shocked to learn her death is suspicious. Reeling from recent events and worsening insomnia, Emma is forced to come clean with her husband.

As Emma's life continues to unravel, her unsettling nighttime behaviour escalates, so she decides to investigate what's happening to her.

Emma seeks solace in a new friend while Phoebe replaces her sister in the family home. As Emma digs deeper into the past, a forgotten childhood memory shines a light on her relationship with Phoebe.

As Emma comes under the spotlight, she is increasingly convinced of her sister's treachery. Before she can get answers to an emerging memory, tragedy strikes and Emma begins to mistrust herself.

A gripping season finale. Realising her home has been infiltrated by a wolf in sheep's clothing and her family is in danger, Emma races to save them.