Becky – who had been thought to be a thing of the past – suddenly disappears as night falls in Weatherfield.

Theo, in a fit of anxiety, realizes that Becky’s phone is still on, but there are no calls or messages.

He bangs on the apartment door, searches everywhere — only to find a crumpled piece of paper: “Sorry, I have to disappear for a bit.”

The scene leaves everyone in the community confused: is Becky being forced by someone?

Or did she choose to hide herself to cover up her secret?

Meanwhile, Theo – who was already suspicious – embarks on a personal investigation. He searches through call records, checks security cameras, and looks for every little trace: tire tracks in front of the door, wet footprints in the living room, and strange shoe prints left in the common hallway. The panic makes him sometimes confused, sometimes violent: banging on walls, throwing objects, screaming in the empty apartment. From the outside, it looks like he’s about to collapse, but deep down, he’s determined not to let Becky – the person he loves – disappear like a mystery.

The climax comes when Theo finds a spare key – but it’s not where she hid it. This discovery makes him understand that Becky had a plan in mind; that she didn’t “lose her memory”, but was trying to protect something. In a panic, he sends text messages apologizing for everything, calling her name over and over again – as if praying that she’s alive and will hear.

Facing the big wave called “Becky’s mystery”, the audience will witness Theo’s step from doubt to pain, from anger to a fierce search. Will he find Becky before everything becomes a tragedy? Or will Becky appear – but no longer the person he trusted?