It follows a detective with Alzheimer's Disease.

In a remote village, a con man disguised as a Taoist priest introduces a memory-erasing device to residents — but a dangerous plot looms.

Xiao Chi, a driven girl who's been looking for love, gets asked out by a hot guy on the eve of Valentine's Day. As she anticipates her first date, she wakes up the next morning and finds that the Valentine's Day has mysteriously passed.