在这部楼上的凶手片中,一位深爱着自己儿子的母亲。……无论自己的儿子作了什么事，母亲都深爱着他。这位坚强的母亲冒着生命危险要去证明自己儿子的无辜，因为她儿子卷入了一桩凶杀案中，死者正是儿子的情人，一名已婚的妇人……
Police detective Bruning investigates the murder of model Vivian Jamison in rich businessman husband James' home. He sees no reason to doubts the evidence pointing at her latest lover, neighboring troubled, fatherless high-school teenager Michael Nowlin, who soon makes a run for it but is caught. The knave convinces his mother Sandra Nowlin of his innocence, but the female 'top lawyer' she hires is no real help. Meanwhile the ex-con liquor shop clerk who could provide Michael with an alibi is murdered.
