He invested with Martin Shkreli, and paid the price.

George Yaffe of Massachusetts sank $100,000 into Shkreli’s hedge fund, Elea Alpha, in 2007 at the urging of his son, Lee, who was pals with the then-future felon, court papers state.

But the investment never paid off, and Shkreli failed to return the cash, though he agreed to repay Yaffe $250,000, more than double his initial investment.

Shkreli was convicted in March of defrauding investors, and Yaffee is suing him in Manhattan Supreme Court for the dough. Shkreli’s lawyer declined to comment.