It sounds like you're exploring a narrative involving a stalker who uses voice manipulation to impersonate others, such as Daniel Ferris' mom. This scenario could lead to various plot developments and themes, such as deception, trust, and the impact of technology on personal relationships.
If the stalker is now using a voice that sounds like Daniel Ferris' (presumably a character in your story), it could create tension and confusion, as characters struggle to discern what is real. This could lead to key moments where characters question their perceptions and confront the stalker's manipulations.
Consider how this plot twist would affect the dynamics between characters. Would Daniel be able to recognize the manipulation? How would the other characters react? Exploring these questions can help deepen your story and heighten the suspense. If you have specific elements of the story you want to develop further, feel free to share!