Caught in the throes of religious fervor, a siblings' retreat turns into a twisted, lustful spectacle. As they recite their sacred texts, their hands stray, touching forbidden places. The brother's cock tents his pants, while his sister's nipples harden against her modest dress. They struggle against their carnal urges, but the tension builds, their voices hitching as they confess their sins. Soon, they're entwined, their bodies writhing in a profane parody of their sacred dance, the sounds of their gasps and moans replacing the chants of their faith.