The film starring Jhon Narváez and Sor María Ríos, is voice of Pepe, the first and last hippo killed in the Americas, who appears as ghost and recounts his story with the powerful oral tradition of these communities.

With seriousness and humor, honesty and trickery, images and sounds convey the powerful dialogue of places where creatures like Pepe perished without ever grasping the true nature of their situation.

[22] Jessica Kiang reviewing in Variety said, "Nelson Carlo De Los Santos Arias sends us on an uncategorizably odd journey down the river of his noodling, needling imagination in a rickety canoe that keeps on capsizing, upended by another sideswiping reference, another jarring change of scene and timeframe or yet another stretch of borderline incomprehensible narration from Pepe himself, a creature who is as surprised as we are that he has suddenly acquired language.

"[25] Wendy Ide wrote in ScreenDaily while reviewing the film at Berlinale, "Pepe is crammed, perhaps even overstuffed, with ideas, but which, like the huge beasts at the heart of the story, is deceptively agile and light on its feet.

Concluding Bell opined, "If there’s any way to rightly convey the essence of what de Los Santo Arias has conjured, Pepe plays like a version of Dumbo as directed by Miguel Gomes.

"[28] Writing for RogerEbert.com, Robert Daniels opined, "Pepe’s voice is initially difficult to take seriously: It’s a deep timbre, composed of hooting and grunting.

But once the film settles in, guided by Pepe’s poetic recollections of how much he misses an Africa he never knew, the restrictions he must endure while in captivity, the pain of being exiled, and the fear of hearing the whirring of a chopper, the incredulity felt by the viewer is replaced by real sorrow.