A driven and successful marketing executive who takes pride in his career and the luxurious Manhattan brownstone he shares with his fiancée. After abruptly losing his high-ranking job and facing blacklisting in his industry, he is forced into the desperate decision to rent out a room in his home.

Blake’s affectionate and supportive fiancée who bakes when she is stressed and is eager to maintain their lifestyle despite Blake's unemployment. She suggests finding a tenant to help cover their mortgage payments and tries to mediate the growing tensions in the household.

Blake and Krista’s pet goldfish, whom the couple treats with an unusual level of devotion as a "trial run" for their future parenting skills. The fish becomes a central fixture in their domestic life and a unique point of contention as household tensions rise.

The beautiful and seemingly perfect tenant who moves into the spare room of Blake and Krista’s brownstone to help them make ends meet. While initially charming, she quickly becomes a source of friction as bizarre habits and strange occurrences begin to plague the household.

Blake’s elderly, curmudgeonly neighbor who is obsessed with the rules and order of the neighborhood. He frequently clashes with Blake over minor infractions like trash can placement, serving as a constant source of external stress for the couple.