Imagine your best friend dies on a summer trip, and a year later, she starts texting you from beyond the grave. That is the chilling premise of the Thai horror series *That Summer* from network One 31. The show follows a group of elite high school students haunted by the mysterious drowning of their friend, a popular influencer named Joy. A year after her death, the friends begin receiving threatening messages from someone claiming to be Joy, who is determined to expose the dark secrets they have all been hiding about that fateful day. As their lies unravel, their friendships are tested, and they must fight for survival against a tormentor who knows exactly what they did. The series has ended, but sign up for a reminder just in case it returns.