𝐒𝐢𝐱 𝐟𝐫𝐢𝐞𝐧𝐝𝐬. 𝐅𝐢𝐯𝐞 𝐲𝐞𝐚𝐫𝐬. 𝐎𝐧𝐞 𝐬𝐞𝐜𝐫𝐞𝐭. Five years ago, Skyler left the peaceful, quaint town of Harmony in his rear-view mirror and vowed never to return. But the past has a way of catching up with people. Skyler is invited back to his hometown to attend a reunion. Upon returning, he's greeted with a warm welcome by his old friends, but some wounds don't heal enough over time, and Skyler remains distant to two friends in particular: the bride and groom-to-be. After catching up and revisiting his past life, the friends get back to their old ways, and everything seems to be going smoother than they could have ever imagined. But when the friends each receive an envelope with nothing more than their names on each one, they're hesitant to open them, but once they do, the message reads: 𝐈 𝐊𝐧𝐨𝐰 𝐘𝐨𝐮𝐫 𝐒𝐞𝐜𝐫𝐞𝐭 The friends quickly dismiss the letters as a prank and seemingly go on with their day. But when one of the group is attacked by someone wearing a long raincoat, and their face hidden behind the shadows of their silhouette, the group starts to believe that it wasn't just a prank; it was a warning. As the tension mounts, the group suspects one another. They're forced to revisit the secret they all buried deep in their past, and a secret that was sworn to never be spoken about again is now the one thing that may hold clues to stopping their stalker once and for all.