Tianhuo Island is as beautiful as paradise. It almost makes people forget that it is located in the "Ring of Fire" the world-famous Pacific Rim volcanic belt. The volcano erupts and the fate of people on the island entangles.
When a nurse downloads an app that claims to predict the moment a person will die, it tells her she only has three days to live. With the clock ticking and a figure haunting her, she must find a way to save her life before time runs out.