When a bachelor party and a bachelorette party cross paths in Vegas, only the best man and maid of honor can save their friends from a night of epic “mistakes.”

A university research scientist, about to lose funding and status, has a lab accident and discovers he can see people’s true intentions — making his situation even worse.

The film follows Mr. Shi, a retired widower from Beijing. When his only daughter, Yilan, who lives in Spokane, Washington and works as a librarian, gets divorced, he decides to…