Parts Per Billion (2014) Characters, Setting & Themes Explained

The story primarily takes place in the United States, focusing on domestic spaces like urban homes, hospitals, and public areas. The global biological catastrophe extends to Europe and the Middle East, creating a backdrop of geopolitical tension that infiltrates the characters' personal lives.

• setting
• locations
• united states
• europe
• middle east
• global crisis

The main narrative unfolds in the present day, reflecting contemporary anxieties about biological threats and geopolitical conflict. The film includes flashbacks to the 1970s, showing a past era involving a scientist's legal case about trade secrets that influences the characters' present attitudes toward risk and responsibility.

• time period
• 1970s
• present day
• flashbacks
• era

A human-made biological disaster serves as the central threat, creating a backdrop of war and societal collapse. This catastrophe forces characters to confront impossible choices about survival, sacrifice, and whether their relationships can withstand the pressure of a world in peril.

• biological disaster
• global crisis
• war
• catastrophe
• threat

Wealth and privilege magnify existing insecurities within three couples, as fear and danger expose underlying distance and miscommunication. The pressure of the external catastrophe turns minor disagreements into tests of loyalty, with hope and attachment constantly put under strain as partners search for connection amid chaos.

• relationships
• couples
• strain
• fear
• loyalty
• trust

A scientist's alleged illicit actions and the subsequent legal case raise questions about responsibility, money, and the moral boundaries of innovation. The narrative explores how scientific ambition intersects with personal gain and societal risk, suggesting that ethical choices are as crucial as technical prowess when dealing with dangerous biothreats.

• ethics
• science
• scientist
• responsibility
• innovation
• moral

Flashbacks to happier times contrast with the current peril, showing how memory sustains hope. The film frames intimate moments as acts of resilience against overwhelming odds, culminating in a symbolic image suggesting that grace and connection can outlive catastrophe even when the future remains uncertain.

• memory
• resilience
• hope
• flashbacks
• survival
• love

Anna, played by Teresa Palmer, is a wealthy, music-loving wife whose growing anxiety about the fragile state of her comfortable life becomes increasingly pronounced as global turmoil intensifies. Her pregnancy and intimate moments with Erik highlight her vulnerability beneath a privileged exterior, driving her fear of losing what she has built.

• anna
• teresa palmer
• character
• wife
• pregnant
• vulnerability

Erik, played by Penn Badgley, is a struggling musician who prioritizes his art and social circle over domestic life despite having family wealth. He resists his grandfather Andy's pressure to accumulate wealth, a choice that strains family ties. His idealism clashes with practical survival realities as the catastrophe looms.

• erik
• penn badgley
• musician
• idealism
• family tension
• grandson

Len, played by Josh Hartnett, is a depressed, unemployed writer whose sense of purpose has withered, leaving his marriage to Mia on the edge of collapse. He confesses his disconnection to his sister Sarah, revealing a deep longing for direction and meaning. His personal crisis mirrors the larger instability threatening the world.

• len
• josh hartnett
• writer
• depression
• marriage
• crisis

Mia, played by Rosario Dawson, is a capable lawyer balancing a demanding career with a strained marriage to Len. She has recently achieved a significant legal victory for a scientist accused of misdeeds, placing her at the center of ethical and personal conflicts. She grapples with protecting her relationship while managing professional success under immense pressure.

• mia
• rosario dawson
• lawyer
• profession
• scientist case
• career

Andy, played by Frank Langella, is Erik's grandfather and a realist who anchors the family's practical concerns during the crisis. He pushes for accumulating more wealth as a safety net while recognizing ethical gray areas in their family's history. His pragmatic viewpoint contrasts sharply with Erik's youthful idealism, underscoring the tension between security and moral responsibility.

• andy
• frank langella
• grandfather
• realist
• wealth
• pragmatism

Esther, played by Gena Rowlands, is Andy's wife and serves as a hopeful presence who believes in a future beyond immediate danger. She navigates memory, loss, and the belief that love can endure even when resources run scarce. Her optimism acts as a counterweight to the film's darker elements, embodying resilience against bleak external realities.

• esther
• gena rowlands
• hope
• optimism
• wife
• resilience

Sarah, played by Nazneen Contractor, is Len's sister and a nurse who provides practical care amid chaos. She becomes a vital conduit for family support as the crisis escalates, embodying compassion under pressure. Her perspective anchors the human cost of the broader calamity and highlights the real-world impact of the catastrophe on healthcare and family bonds.

• sarah
• nurse
• len sister
• family support
• compassion
• healthcare

The film carries a predominantly dark tone dominated by themes of war, loss, and human fragility. However, it is not entirely bleak due to the resilience shown by characters like Esther and a final hopeful image. The emotional weight is heavy, dealing with life-and-death stakes, profound personal sacrifices, and the breakdown of society under catastrophic pressure, resulting in a bittersweet ending.

• tone
• dark
• emotional
• bittersweet
• war
• loss
• fragility