The main character in The Cleaning Lady is Alice, a love-addicted woman who is in a secret affair with a married man. To distract herself from this unhealthy relationship, she befriends a cleaning lady named Shelly, who is badly scarred by burns on her face and body. As Alice spends more time with Shelly, she begins to delve into the cleaning lady's past and discovers that her scars are more than just physical.
Through flashbacks, the audience learns that Shelly was the victim of a horrific acid attack by her ex-boyfriend, leaving her physically and emotionally scarred. As Alice learns more about Shelly's traumatic past, she begins to see parallels between her own toxic relationship and Shelly's abusive one.
Despite the darkness of Shelly's past, Alice finds solace in their friendship and begins to feel a sense of redemption through helping Shelly confront her demons. However, as their bond deepens, Alice starts to realize that Shelly's scars run much deeper than she initially thought.
As the truth about Shelly's dark and twisted nature is revealed, Alice is faced with a difficult decision that will ultimately test the limits of her loyalty and friendship. The Cleaning Lady is a gripping and suspenseful tale of trauma, redemption, and the blurred line between friendship and obsession.