It’s the “Parent Trap” – gone bad. 

Twins swapping identities is the premise of the Netflix hit thriller drama “Echoes,” but it’s a tad darker than the Hayley Mills classic. Michelle Monaghan plays identical twins who have switched places every birthday since they were kids into adulthood, tricking husbands and children. But, the twisted ritual goes wrong one year when they find themselves as prime suspects in a murder, puzzling a local cop who can’t figure out who did it.

While the show may be highly dramatized, in real life, twins committing crimes – together or separately –  isn’t uncommon. And figuring out who did it can be extremely complicated.

“Identical twins have identical DNA – that’s an impossible comparison at the genetic level. One is in fact the other, there’s no way to differentiate between the two because the entire genetic code is the same,” Jarrett Ambeau, a criminal defense trial attorney and expert in forensic DNA interpretation told The Post. “There’s a real serious issue at the genetic level with identifying identical twins and even siblings in terms of genetic material left at a crime scene.”