I just didn't get this film....to quote Alfred Hitchcock:-
"An audience confused is not emotive"
Try tapping the exact text in quotation into a Google browser. The resulting A.I. overview would be my review of this film.
i.e.
A confused audience is likely to be less engaged and receptive to an emotional message. When people are struggling to understand, they're focused on the cognitive task of processing the information, which can hinder their ability to experience and connect with the intended emotions. This is especially true when the message is complex or abstract.
I 'got' (not really!) the undertone about suicide but trying to sell this as a Blumhouse horror, it really drags down on an otherwise strong catalogue.
Or is it homicide, infanticide, "Charlie"acide. OK so that last one's the dog but WHY? WHY? WHY?