爱玩手机的凯西在邻居家帮忙顾小孩时，惊觉自己的手机电量急速下降，最糟的是她带错充电线！心急如焚的她闯进地下室寻找充电线，凯西不经意发现一台老旧电视，转动频道钮后萤幕竟然亮了起来！萤幕内播送一个又一个恐怖故事，杂讯和死神的耳语交织，凯西脸上饶富兴味的笑容渐渐消失，随着她转身逃跑，身后响起：「凯西，你是我的了......」

　　With Stranger Things: The First Shadow launching its first preview performance tonight on Broadway, Netflix has announced Behind the Curtain: Stranger Things: The First Shadow.
　　Follow the cast and crew as they race against time to prepare the ambitious, critically acclaimed West End stage play, which opened at London’s Phoenix Theater in December 2023.
　　Stranger Things: The First Shadow is written by Kate Trefry (“Stranger Things”), based on an original story by “Stranger Things” creators the Duffer Brothers, Jack Thorne (Harry Potter and the Cursed Child), and Trefry.
　　Serving as a standalone prequel to the hit Netflix series, the Olivier Award-winning play is directed by Stephen Daldry and co-directed by Justin Martin.