Young San Francisco couple takes on mammoth mortgage assuming tenants will write their ticket to the American dream, but psychopathic tenant Keaton moves in downstairs and redecorates. He won't pay the rent and he won't leave. Creepy psycho-thriller has lapses but builds to effective climax. It's a treat to watch mother/daughter actresses Hedren and Griffith work together. Watch for D'Angelo as Keaton's lover.