On August 28, 2008, Hannah left her apartment in Manhattan for a morning jog. She brought nothing with her—no phone, no identification, no wallet. At first, her absence wasn’t immediately alarming. But when she failed to return and didn’t appear for the first day of her teaching job, concern quickly escalated into alarm. Friends, family, and police began searching. What made the situation even stranger was that, in the days that followed, Hannah was spotted in several places around New York City. Surveillance footage showed her walking into stores, using a computer at an Apple Store, and even entering gyms. She behaved normally, even casually, yet showed no awareness that people were searching for her or that she herself was missing.
Nearly three weeks passed. Then, on September 16, 2008, a Staten Island Ferry crew noticed a figure in the water. It was Hannah, floating face down in New York Harbor. She was alive, but in critical condition, suffering from dehydration and hypothermia. When she regained consciousness, she couldn’t explain where she had been. In her mind, only a few minutes had passed since she left for her jog. In reality, more than twenty days had disappeared.
Doctors eventually diagnosed her with dissociative fugue, a rare condition in which a person loses their sense of identity and may wander or travel without memory of who they are. It was an explanation, but not a comforting one. Even experts found her case unusual, especially because she seemed capable of functioning normally while completely detached from her own identity.
After recovering, Hannah tried to rebuild her life. She moved to Maryland and resumed teaching, appearing to return to normal. For several years, it seemed as if the frightening episode in New York might have been a one-time event. But in September 2013, it happened again. Hannah suddenly disappeared from her workplace. Once more, her belongings—her phone and wallet—were found abandoned. And once more, she resurfaced days later, disoriented and unable to explain where she had been or what had happened.
Despite the recurrence, Hannah continued trying to move forward. Eventually, she relocated to St. Thomas in the U.S. Virgin Islands, drawn by a new teaching opportunity and a calmer way of life. She embraced the island, forming friendships, teaching young children, and spending time in the ocean, which she loved. To those around her, she appeared happy and settled.
Then, in September 2017, the pattern repeated for the third—and ultimately final—time.
The island had just been struck by Hurricane Irma, and another storm, Hurricane Maria, was rapidly approaching. The environment was chaotic, with damaged infrastructure and strained resources. On the morning of September 14, 2017, Hannah left her home, reportedly planning to go swimming at Sapphire Beach. She never arrived at work that day and never returned home.
Her belongings were later found near the beach: her car, her clothing, and personal items left behind as if she had intended to return shortly. But there were no confirmed sightings of her afterward—no cameras capturing her movements, no witnesses placing her elsewhere. The hurricanes that battered the area in the following days severely hindered search efforts, washing away potential evidence and making rescue operations difficult.
From that point on, Hannah Upp simply vanished.
In the years since, investigators and loved ones have searched for answers, but none have been definitive. Some believe she may have entered the water and drowned during another fugue episode. Others think she may have wandered away in a dissociative state and could still be alive somewhere, unaware of her identity. The confusion of hurricane evacuations has even led to speculation that she might have left the island unintentionally, blending into another location without realizing who she was.
Adding to the uncertainty, a set of human remains was later discovered on a nearby island, but the body was too decomposed to confirm whether it was Hannah.
What makes Hannah Upp’s story so unsettling is not just her disappearance, but the nature of her condition. Dissociative fugue is rare enough on its own. Experiencing it multiple times, in different places, with such prolonged gaps in memory, is extraordinarily uncommon. In each prior instance, she had been found alive, unaware of what had happened. That pattern makes her final disappearance even more haunting, because it leaves open the possibility that somewhere—if she survived—she may still be living without any memory of who she once was...
Adding to the uncertainty, a set of human remains was later discovered on a nearby island, but the body was too decomposed to confirm whether it was Hannah.
What makes Hannah Upp’s story so unsettling is not just her disappearance, but the nature of her condition. Dissociative fugue is rare enough on its own. Experiencing it multiple times, in different places, with such prolonged gaps in memory, is extraordinarily uncommon. In each prior instance, she had been found alive, unaware of what had happened. That pattern makes her final disappearance even more haunting, because it leaves open the possibility that somewhere—if she survived—she may still be living without any memory of who she once was...
