A retired mathematics professor spends his days writing, when one day he comes across a young injured girl with no home or history. As he takes her in and cares for her, he begins to suspect that she is the reincarnation of his late wife.

Michel, a retired math teacher, has lived alone since his wife's death & occupies his time writing an essay about the beliefs that shape daily life. One day he comes across Dora, a young homeless woman, who shows up injured on his doorstep, & puts her up until she recovers. Her presence brings something new to Michel's life, but gradually the apartment becomes the site of mysterious happenings.—cineuropa