The Voices (2015)

On the surface, Jerry (Ryan Reynolds) seems like a nice guy. He's handsome, friendly, upbeat, and he likes animals. But Jerry has a mental health problem and his psychotherapist (Jacki Weaver) keeps him on a strict regimen of antipsychotics.

When Jerry stops taking his medicine, he hears voices: his dog tells him he's a swell guy, while his cat constantly reminds him that he's deranged, idiotic, and unlovable. Determined to prove the cat wrong, Jerry asks his co-worker Fiona (Gemma Arterton) out on a dinner date that goes horribly wrong.