A man goes back in time to stop his girlfriend from ending the relationship before he can propose to her, but each time he returns, she ends up with a different excuse. He now he has to see how to change to be able to marry her.
Marcos, a withdrawn park ranger, sees the fragile balance achieved in his isolation collapse with the arrival of a couple of biologists investigating strange bird deaths. Unfortunately, the desire and envy for normality represented by the couple awaken the monster he has been trying to control. His face, his legs, and his arms don’t belong to him and as the desperation becomes incontrollable, he can only see one way out: mutilation.
