“A familial sci-fi drama that surrounds its gruesome finale with moments of carefully constructed empathy, [Sisters] is a study in abstract horror and potential mental illness. Osborn’s use of parallel editing, particularly in a sequence that alternates between a downstairs kitchen and an upstairs bathroom, earns its high-strung pathos.”

— Erik Luers, Filmmaker Magazine

“The performances—Jade Lane as a weary single mom who’s unsure whether to believe her unpredictable sister; Lindsay Burdge as a fragile soul who’s convinced that E.T. has it in for her—are excellent, and the ambiguous story offers a clever way to examine a family that’s been fractured by forces (alien or otherwise) beyond its control.”

— Cheryl Eddy, io9