A local girl who visits the house to offer laundry services; her accidental death at the hands of Carmela introduces a traumatic element to the boy's childhood and marks the beginning of the house's dark history.
Carmela's violence causes Martha's accidental death inside the house.
When Martha tries to protect the boy, Carmela knocks her into a door post and kills her.
Martha's death becomes one of the formative traumatic events in Luis's past.
Martha invites the isolated boy to play, then dies in front of him; the later revelation identifies that boy as Luis.
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