In April 2014, Dutch friends Kris Kremers, 21, and Lisanne Froon, 22, set out for a short hike near Boquete, Panama. Dressed in light clothes and carrying a small backpack, they told their host they’d return before dark. They never did.

When their host family’s dog returned alone, worry set in. Days turned into weeks with no sign of the women—until a local woman found their backpack by a river, nearly two months later. Inside were personal items, phones, and a camera that revealed disturbing details.

Their phones showed 77 failed attempts to call for help. One call briefly connected but ended after just two seconds. The camera revealed cheerful photos from early in the hike, then, bizarrely, a series of eerie night images taken a week later—showing scattered belongings, strange patterns in dirt, and possibly the back of Kris’s injured head.

Eventually, scattered remains were found—some bones still with flesh, others bleached and clean. Kris’s clothes were found folded by the river. No signs of foul play were confirmed, yet the condition and placement of the remains raised unsettling questions.

Despite years of investigation, no clear explanation has emerged. Were they lost and fell victim to the jungle—or was something more sinister behind their tragic end?

To this day, the disappearance of Kris and Lisanne remains one of the most chilling and mysterious cases in modern history.