Apartment 1303 captures breathtaking sea views from its 13th floor position, what’s more the interior is a calming bright and white space. Less tranquil is the strained love/hate relationship between mother and daughter, residents of the apartment. Things take a sinister turn when the daughter kills herself. The mother is driven mad by the tragedy and her younger daughter becomes determined to unfold her sister’s mysterious death. She discovers the shocking history of their apartment, where a series of young women have taken their lives.