Party of One

Watch Party of One full movie online Movies123. Watch Party of One 123movies online for free. Party of One 123movies: A night in the life of a young adult celebrating her birthday with friends. Amidst the celebration, she encounters uncanny happenings and grows increasingly unnerved by a phantom-like presence. What she doesn’t discover, however, is a parallel existence –– a shadowed life on the fringes; a party of one.