No Man's Woman (1955)

Carolyn Ellenson double-crosses five people who cross her path and is murdered by one of them. After marrying Harlow Grant for his money, she leaves him but carries on her infidelities so cleverly he can not divorce her. When Grant falls in love with Louise Nelson, art-studio employee, Carolyn demands a prohibitive cash settlement and large alimony payments.

Then tiring of her art-critic lover, Wayne Vincent, who has jeopardized his own career touting her art-studio business, Carolyn leaves him to pursue Dick Sawyer and break-up his engagement to Betty Allen. All of these five people have motives for murdering Carolyn and the police choose Grant as the logical suspect. But another person comes forward to confess to the killing for personal reasons, but he didn't do it. The real killer feels secure but must remove the murder-weapon from the studio before the police discover it.