Complex sentence: Gradually they open up to each other and reveal their deepest personal secrets, namely that Allison is a compulsive liar, Andrew hates his father, John comes from an abusive household, Brian has contemplated suicide, and Claire is a virgin.
Split into simpler sentences: Gradually they open up to each other and reveal their inner secrets. For example, Allison is a compulsive liar, Andrew hates his father, John comes from an abusive household, Brian has contemplated suicide, and Claire is a virgin.