1899

The series features an explicit romantic and sexual relationship between two male characters, Ángel and Ramiro. Their relationship is a notable part of their individual storylines and the ensemble dynamic. While not the central theme of the entire series, it is a significant and recurring element within the narrative, contributing to the show's diversity of characters and relationships. The portrayal is clear and includes sexual acts.

1899 contains frequent and intense depictions of violence, including graphic murders, brutal assaults, and disturbing scenes of death. The violence is often explicit, with visible injuries and blood, and is a central element in many of the plot's mysteries and character backstories. Several characters meet violent ends or are subjected to severe harm, contributing to the show's dark and unsettling atmosphere.

The series includes substantial romantic and sexual content, ranging from implied intimacy to explicit sexual acts. While graphic nudity is generally limited, scenes depict characters having sex and engaging in other sexual behaviors. Sexual violence, including rape, is also explicitly mentioned or shown, adding a very mature and disturbing layer to the content.

1899 features strong and frequent profanity. Viewers can expect to hear explicit language, including F-words and S-words, used throughout the dialogue. The cursing is present in intense and aggressive scenes, contributing to the gritty and desperate tone of the narrative and the stress experienced by the characters.

While not explicitly focused on traditional witchcraft, the series heavily incorporates occult themes, mysterious symbols, and supernatural elements that drive the central mystery. This includes recurring symbols like an inverted triangle, strange metallic substances, and inexplicable events that defy natural explanation, creating an eerie and supernatural horror atmosphere. The premise involves a reality that is not what it seems, hinting at a higher, possibly dark, manipulation or simulation.

Substance use is present and at times explicit in 1899. Characters are shown consuming alcohol and smoking. More significantly, there are scenes depicting the forced or willing injection of various substances, including drugs. One character overdoses from willingly injecting a drug for pleasure, and a young boy is involuntarily injected, highlighting the harmful and non-consensual aspects of substance administration.

The series is a supernatural horror and mystery thriller with a dark, tense, and often oppressive atmosphere. It features numerous frightening and intense scenes, including jump scares, disturbing imagery, and psychological horror elements. The constant mystery and the characters' deteriorating mental states create a pervasive sense of unease and peril, making it consistently suspenseful and potentially unsettling for viewers.

Instances of disrespect and rebellion against authority figures are significant in 1899. Passengers, particularly those from third-class, openly defy the captain and crew, leading to mutiny. This defiance is a core plot driver, showcasing class struggle and characters' desperation as they challenge established rules and leadership.

While the series features religious characters and themes of faith, particularly with characters like Iben and Ramiro, it does not explicitly promote anti-Christian messages or mock Christian beliefs. However, the overall supernatural and philosophical questioning of reality may implicitly challenge traditional religious frameworks for some viewers, as the narrative suggests a simulated existence rather than a divinely ordained one. The character Ramiro is a 'faux Portuguese priest' which implies a non-genuine religious affiliation, but this is more about character deception within the plot rather than a direct attack on Christianity.