A Killer Upstairs (2005)

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.