Two young men born on February 29 try to uncover the secret behind their leap year birthday curse before they lose people close to them.

Worried about her husband being allergic to dust, Nat, a recently-dead woman, returns as a ghost possessing a vacuum cleaner to clean the house.

In a fight for their lives, two dancers infiltrate a high-profile social club and seek the help of a newfound ally to unmask traitors to Siam.