Power Outage in the PICU

In the Pediatric Intensive Care Unit, a sudden power outage occurred. As the doctor on night duty, I remained calm and didn't panic, nor did I call for help. I calmly waited as the temperatures of the incubators where the babies lay slowly dropped... In my previous life, when the pediatric department lost power, I immediately switched to the backup power sources to ensure the children's safety. After doing everything I was supposed to do, I sat down to take a breather and took a sip of water. Suddenly, my coworkers rushed in, waking me up. "Dr. Luther, you're a healthcare staff, how could you kill those children?!" "You froze them to death! How vicious! You'll pay for this!" Only then did I realize that all the children had died, without exception. The police took me away. They said I was the only one in the room and they found my fingerprints on the thermostat. My son then produced a video to assist in the investigation. "She often complained about the patients being a bother and hoped they would all die." Enraged family members cornered me in an alley and tortured me for ten hours until I died. But until my last breath, I couldn't understand how the children could have frozen to death in a thermostatically-controlled environment. And why did my own son provide a fake video to frame me? Suddenly, I jolted awake. I found myself waking up on the day of the power outage.