🌊The group of friends goes on a trip to a quiet area called Kyang Valley, known for its beautiful waterfalls and cliff jumping.
🔪During the trip, tensions arise within the group due to complicated relationships, including Un's ex-boyfriend attending with his new girlfriend.
😢Sam, Un's husband and an older member of the group, tragically dies during a cliff jump, raising suspicions of foul play.
💀The insurance company refuses to pay the life insurance following Sam's death, citing suspicion of fraud and foul play.
🎬A documentary series titled 'The Last Diving of the Day: The Kyang Valley Drowning Mystery' is released, highlighting the events leading up to Sam's death and Un's suspicious behavior.