The night before my wife left for a business trip to Berlin, I replaced her birth control pills with folic acid tablets.
They were the same size and nearly the same color. She wouldn't notice.
If not for the message that popped up at two in the morning three days ago, "Max says Berlin winters are freezing, but I'll keep you warm", I might never have found out who was hiding behind the contact name "Project Team M."
For six months, I used every minute to gather evidence: a secret social media account, mysterious monthly transfers of three thousand, and a pair of men's shoes that weren't hers in the background of her video calls.
What chilled me even more was that she'd noticed I'd switched the pills long ago. She didn't expose me. Instead, she bought her own folic acid and played along.
When she came home with a baby bump and smiled, saying, "We're going to be parents," I smiled and held her, then handed her a paternity test and divorce papers.
"Pei Zheng is excluded as the fetus's biological father." She thought she'd covered her tracks perfectly, but she had no idea that she didn't get to decide who was hunter and who was prey.