Delusion (2016) on Netflix

Plot summary

Three years after the death of his wife, Frank Parrillo receives a letter from her. With his nephew's help, Frank decides the time has come to start over. A mysterious woman appears soon afterward, and she seems a kindred spirit, as both are battling with troubles inside them. Around Frank there are also a psychic who offers premonitions and a man whose existence Frank cannot be certain of. Frank struggles with reality and with the loss of his wife. He keeps moving forward and faces the demons in his head, though he does not know where his choices are taking him.