PLUMBER

This is a classic dark-humor horror meme/comic known as the “Plumberto” or “Plumber Horror” comic (originally from the Spanish horror page Historias +). It’s designed to look like a typical “sexy plumber” porn trope… but then brutally subverts your expectations.
Here’s the full story in order:
1–3. A woman calls a plumber because her sink is leaking. Plumber shows up, crawls under the sink to fix it.
4–6. Classic porn setup: woman stands over him in a short skirt with no panties, he looks up and gets the “lucky” view. He’s shocked and excited.
7–8. Woman smiles seductively asks if he’s going to keep working or come out and “take care of her.” Plumber is sweating bullets, torn between professionalism and temptation.

He finally gives in, drops the wrench, comes out grinning like he won the lottery.
He discovers the woman is actually dead. She’s been dead for a while (rigor mortis, corpse-pale, eyes rolled back). There’s a memorial photo of her on the table with flowers and candles.

11–12. Plumber screams in terror and tries to run away.

The dead woman’s husband/boyfriend is sitting in the living room the whole time, calmly reading the newspaper, completely aware of what’s happening.
“FINAL ALTERNATIVE” card appears (implying there were two endings planned).

15–20. In the “alternative” ending, the plumber keeps trying to escape, but the husband calmly keeps blocking him, still reading the newspaper. Eventually the corpse reanimates into a full-on zombie/ghost and drags the screaming plumber back inside while the husband just smirks behind his paper.
The joke is that it perfectly sets up the most clichéd adult-film scenario… only to reveal it’s actually a necrophilia + cuckold + supernatural horror story. The husband has apparently been hiring plumbers to “service” his dead wife for some time, and when they inevitably try to flee he and the undead wife make sure they never leave.
It’s deliberately grotesque and over-the-top, which is why it became a legendary shock meme.