Awakening (2017) online

After more than a decade of living in America, a young man returns to the small Irish village of his childhood to bury his estranged father. Moving into his father's cottage, he starts suffering terrifying nightmares about a pair of missing local teenagers which awaken terrible childhood memories that he's long repressed. Just when he's sure that he's losing his mind, he learns a terrible truth that throws his entire world upside-down