When their mother goes missing in Spirit Lake, three half-sisters travel home to settle her affairs. The youngest sister, June, a documentary filmmaker, captures their bittersweet homecoming. But when the sisters jokingly summon a local ghost, their relationship begins to unravel and they find themselves drawn deeper and deeper into the true mystery of the lake.
Revolving around three sisters' reunion after the drowning of their estranged mother, "The Midnight Swim" depicts the events through a home movie filmed from...