Ep 16. Chapter Seventy-Three: The Locked Room

Chapter Seventy-Three: The Locked Room is the sixteenth episode of the fourth season of the popular teen drama show Riverdale. The episode opens with Betty Cooper leaving Charles' FBI office, but she is visibly upset and has a strange mark on her hand. Jughead Jones asks her what happened, but she tells him not to worry about it.

Meanwhile, Archie Andrews and Veronica Lodge are working on their plan to take down Hiram Lodge, who they believe is behind all the recent crimes in town. They break into his office and find some incriminating evidence that could help prove their theory. However, Hiram catches them in the act, and they have to come up with a quick escape plan.

Back at school, Jughead and Betty are working on their newest writing project, but Betty can't seem to focus. She's still very shaken up from her visit with Charles and her strange mark has started to spread. Jughead tries to comfort her, but she's clearly distressed.

As the day goes on, other strange things start to happen around the school. The doors to the music room lock on their own, trapping Toni Topaz and Cheryl Blossom inside. When they finally get out, they discover that all the instruments in the room have been smashed.

Betty starts to notice more strange marks appearing on her classmates' skin, and she begins to suspect foul play. She enlists the help of Jughead, Archie, and Veronica to try to get to the bottom of what's happening.

As they investigate, they discover that the marks are connected to a mysterious room in the school that's been locked for years. They track down the key and break into the room, revealing a shocking secret that's been hidden away for decades.

Chapter Seventy-Three: The Locked Room is a suspenseful and thrilling episode that will keep viewers on the edge of their seats. With its twists and turns, unexpected reveals, and high-stakes drama, this episode is a must-watch for fans of Riverdale.