Sebastián Rivas had hidden cameras installed in every corner of the house. He was convinced the new nanny would disappoint him like all the others. But when he finally reviewed the footage, what he saw wasn’t betrayal or negligence. It was his four-year-old son doing something Sebastián had never expected — and it broke him in ways he wasn’t prepared for.

At thirty-two, Sebastián Rivas seemed to have it all: a sleek penthouse in Puerto Madero, luxury cars in the garage, investments multiplying quietly in the background. Success followed him everywhere. Everything, except peace. Eight months earlier, his wife, Camila, had died in a car accident, and with her went the warmth that once filled their home.

Now it was just him and Mateo — a small boy with deep brown eyes that looked more and more like Camila’s every day. That resemblance felt like a blade twisting in Sebastián’s chest each morning.

“I need another nanny,” he had told his assistant two days before.

She would be the fourteenth.

He always found a reason to dismiss them. They were late. Too informal. Not attentive enough. Something always felt wrong.

But the truth was harder to admit: he couldn’t bear seeing another woman care for his son. Every hug Mateo received felt like a reminder of the one person who should have been there.

That Monday, Sebastián adjusted his cufflinks and came downstairs. The silence in the house was heavy — no music, no laughter, just echoes.

“Mr. Rivas,” said Clara, the housekeeper. “Mateo already had breakfast. He’s upstairs playing.”

“Alone?”

“Yes, as you requested. No screens. Just toys.”

Sebastián nodded, ignoring the tightness in his chest. Independence was important. The world wasn’t gentle.

“What time is the new nanny arriving?”

“Ten. Her name is Lucía Herrera.”

Sebastián glanced at his watch. Forty minutes. Enough time to lay down the rules.

Upstairs, Mateo sat on the rug building a tall block tower.

“Morning, champ.”

“Morning, Dad.”

“We have a new nanny today. Lucía.”

Mateo simply nodded. He was used to the rotation by now.

“I need you to behave.”

“I always do.”

And he did. Too much so. Too quiet for a child his age. No tantrums. No complaints. No demands. Sometimes Sebastián wondered if that was normal — or if his son had learned to shrink himself.

At 9:30, the doorbell rang.

Sebastián frowned. Early.