Ursula and Sabina Eriksson (born 1967) are Swedish twin sisters who came to national attention in the United Kingdom in May 2008 after an apparent episode of folie à deux (or "shared psychosis"), a rare psychiatric disorder in which delusional beliefs are transmitted from one individual to another, which resulted in a series of bizarre incidents on the M6 motorway and the subsequent killing of Glenn Hollinshead of Fenton, Staffordshire. https://en.wikipedia.org/...
