I en lille by i Californien begynder folk at opføre sig mærkeligt. Lægen Miles Bennell begynder at undersøge sagen og opdager at rumvæsner dræber befolkningen én efter én. Mordene sker om natten, hvor plantelignende væsner myrder de sovende mennesker og tager form efter deres ofre. Rædslen breder sig for det er svært at kende de rigtige mennesker fra de falske.
Pigen Marty flytter sammen med sin familie ind på en militærbase, hvor hendes far skal undersøge nogle miljøproblemer. Problemerne viser sig dog at være langt større en først antaget for en gruppe klamme rumvæsner, dræber basen personel, når de sover og overtager deres identitet. Snart ved Marty ikke hvem hun kan stole på.
Gu Yi is a stand-up comedian in Shanghai who juggles a day job and nighttime performances. Her simple goal is to make everyone laugh, but one day she encounters an audience member, Liang Daiwen, who seems immune to her humor. This leads to an unexpected clash between a woman driven by comedy and a man who never laughs.
It's the year 3034. Everyone on Earth has become an emotionless drone set on colonizing the solar system. Their lack of emotion makes them a fearless and remorseless race that destroys without conscience. An alien race called the Reptids, intent on releasing a biological weapon to reawaken our emotions.
The bubbly yet unlucky Heart finds her lucky charm in Saul, a no-nonsense businessman who gives her an offer that's difficult to refuse. Carrying on a pretense, Heart and Saul discover the value of love and life as romance blossoms between them.
