Parental Guardian Angel

A courier named Daniel arrives at the residence of a young girl, Carrie, with a parcel. Upon hearing a man's hostile voice inside, Daniel becomes worried. Despite Carrie's nervous demeanor, she quickly dismisses his concerns and closes the door.
With each subsequent delivery, Daniel's suspicions about the household's troubles intensify. He suspects Carrie's father is mistreating both her and her mother, but Carrie continues to deny any wrongdoing. Feeling increasingly desperate to assist, Daniel decides to take matters into his own hands.
During a particular delivery of vitamins for Carrie's father, Daniel instructs Carrie to ensure that only he consumes the vitamins. Sensing Carrie's assurance, Daniel exhales as she closes the door. Two years later, Carrie is visibly happier, with Daniel now married to her mother.
The household is now peaceful, as Carrie expresses relief over her father's sudden passing. Grateful for the positive change in her life, Carrie credits someone watching over them for the fortuitous turn of events. As Carrie expresses her gratitude, Daniel's demeanor shifts nervously.
Upon realizing Carrie wishes to thank someone for eliminating her father, Daniel admits his involvement in the man's demise. While Daniel justifies his actions as protecting Carrie, he is taken aback when Carrie not only appreciates but desires him. Despite Daniel's attempts to deter her advances, Carrie suggests that his extreme actions may have stemmed from a deeper desire for her.
Caught in a web of conflicting emotions, Daniel finally succumbs to Carrie's seduction, acknowledging that there might be undisclosed feelings between them. As Carrie tantalizes him with the suggestion of exploring their forbidden desires, Daniel finds himself unable to resist her advances.