4 ideas
A mysterious cook named Lucídio offers to prepare their banquets, and after each dinner one member dies, apparently poisoned through the dish he loves most. The survivors, including the narrator Daniel, understand the pattern but keep showing up for the next meal.
When indulgence is embedded in a recurring social ritual, the ritual itself supplies the motive to continue even after the cost becomes lethal and visible. The members do not deny the danger. They weigh a sublime meal against their own survival and repeatedly choose the meal, which shows desire overriding rational risk assessment rather than merely ignoring it.
Treat a vice as a source of absurd, ironic humor rather than moral warning. When the narrative stays deadpan about characters knowingly courting death for dinner, gluttony reads as a recognizable human refinement pushed to its logical extreme. Seen this way, the sin becomes a trait the reader shares rather than a failing to condemn.
The story is told by a member who keeps returning to the table, so the witness to the crimes is also a participant in the appetite that enables them. His account mixes confession with evasion. That leaves open how much his desire, and the group's silent consent, shares responsibility with the cook for the deaths.