 In Los Angeles, after eighteen years without speaking to each other, Edith Phillips meets her twin sister Margaret de Lorca in the funeral of Maggie s husband and former love of Edith that died of heart attack. Maggie invites Edith to visit her mansion, and Edith finds through her sister s driver that Maggie used a fake pregnancy to trick her and marry her passion. When Edith arrives in her bar, she is evicted by her landlord. Edith calls Maggie, kills her and assumes her identity. The police, including her boyfriend Sergeant Jim Hobbson, believe that Edith committed suicide in an act of despair. Edith lures Maggie s servants and friends, but when Maggie s lover Tony Collins appears, the situation becomes complicated for her.