What Lies Below (2020) Characters, Setting & Themes Explained

The movie takes place in a lakeside home that serves as both a picturesque summer getaway and an eerie, unsettling backdrop. Key locations include the kitchen, where family tensions begin to surface, and the mysterious basement where disturbing truths are revealed.

• lakeside home
• setting
• basement
• kitchen
• location

The film is set in contemporary times, reflecting modern-day family dynamics and relationships. This contemporary setting emphasizes current themes of privacy, trust, and the challenges of blended family situations.

• contemporary
• modern
• time period
• setting

Body horror explores the terrifying aspects of physical transformation and invasion. The film examines autonomy and the violation of personal boundaries, particularly through John's invasive behavior and the grotesque discoveries in the basement that challenge the characters' understanding of themselves and each other.

• body horror
• transformation
• invasion
• autonomy
• boundaries

The narrative centers on Libby uncovering disturbing truths about John's true intentions and her mother's circumstances. The theme examines how hidden secrets damage familial relationships and the consequences of withholding truth from loved ones.

• secrets
• lies
• trust
• family relationships
• hidden truth

Libby's journey represents a coming-of-age story marked by confusion and terror as she navigates adolescence while confronting bizarre and terrifying realities. Her character development centers on confronting fears and understanding disturbing truths about her family and identity.

• coming of age
• adolescence
• Liberty
• Libby
• identity
• growth

John Smith is Michelle's new partner, presented as a charismatic aquatic geneticist. His strange behaviors and mysterious actions raise immediate red flags, embodying both charm and a menacing nature while hiding a disturbing secret that ultimately defines the film's horror elements.

• John Smith
• character
• aquatic geneticist
• villain
• menace

Libby is the sixteen-year-old protagonist whose curiosity and caution drive the narrative. She represents the voice of reason amid family's troubling dynamics, showcasing bravery as she investigates the unsettling truths surrounding John and protects her mother from danger.

• Liberty
• Libby
• protagonist
• main character
• teenager

Michelle is a romance author struggling with feelings of unworthiness and the complexities of motherhood. Her decisions to pursue a new relationship set off a chain of chilling events, and her relationship with Libby highlights the challenges of communication and understanding within families.

• Michelle Wells
• mother
• motivation
• unworthiness
• parenthood

Marley is Libby's friend who represents a tether to normalcy amid the escalating chaos. She provides crucial support during Libby's distressing experiences and becomes an ally when confronting John's sinister behavior, highlighting the importance of friendship and trust during crisis.

• Marley
• friend
• ally
• support
• normalcy

The serene lakeside home provides a deceptive atmosphere of peace and relaxation, which contrasts sharply with the horror unfolding within. The water imagery connects to John's aquatic geneticist background and adds an element of isolation, making the home feel both idyllic and claustrophobic.

• lake
• water
• setting
• isolation
• atmosphere
• symbolism

The film maintains a dark tone grounded in betrayal, violation of privacy, and grotesque biological transformation. With steady pacing and constant underlying tension, the atmosphere never provides relief, creating a suffocating sense of threat that intensifies as the truth emerges.

• tone
• atmosphere
• dark
• tension
• thriller
• horror

The film explores personal boundaries through John's invasive behavior and the horror of biological transformation. This theme extends to familial relationships, as Libby's attempts to warn her mother are dismissed, representing a violation of trust and the devastating consequences of ignoring warning signs.

• boundaries
• invasion
• privacy
• trust
• violation
• autonomy