In one of the first scenes of “Take Me Home,” main character Anna (Anna Sargent) shares a shower with her mother Joan (Marceline Hugot) as the two gently shampoo each other. The boundary between who’s the caregiver and who’s being cared for is intentionally made unclear, a succinct reflection of the co-dependent, precarious dynamic they share with each other and Anna’s father Bob (Victor Slezak). “Take Me Home” is a barefaced personal project for writer-director Liz Sargent, who cast her own sister Anna in the role of the lightly fictionalized protagonist. It makes for a very promising first feature, one that unfortunately undercuts itself with an underwhelming, emotionally vapid fantasy of a conclusion. And Anna Sargent proves a wonderfully unguarded and able performer, proving alternatively funny and deeply sensitive.