Amber Frey Witness for the Prosecution (2005)

A single blind date suffices for handsome gentleman Scott Peterson a traveling salesman to seduce Amber Frey all the way When a colleague finds out about his marriage she believes him to be a widower Later however it becomes clear his wife was alive and pregnant but is missing Pregnant herself Amber hears his wife and babys corpses were found and records his phone calls for the police Ultimately shes the key witness is his murder trial