All things have spirits

There were a lot of people on the entire cruise ship.
Infrared imagers can only perform preliminary screening.
Most people sleep in each other's arms.
There are also some night owls who are still drinking, chatting and bragging.
Harvey Chase looked around.
"Huh?"
Harvey Chase's gaze stopped, and his imaging device stopped at the bottom of the far left side of the cabin.
The so-called night vision infrared telescope is actually a temperature detector.
Due to the difference...