A bourgeois middle-aged dentist named Veronica (MARIA ONETTO) drives alone on a dirt road, becomes distracted, and runs over something. Immediately she becomes disoriented, unmoored from her identity and reality, like a sleepwalker who’s actually awake. At first she thinks it was a dog, but as the weeks go on, she becomes obsessed with the possibility that she may have killed someone: a young boy whose body is found in a roadside canal. Veronica tries to piece together what happened while her family systematically erases any trace of the accident.