Visited by the past

Amelia and Joe are happily married with two kids. Their marriage starts crumbling when it is exposed that one of them isn't his child and that Amelia has another son. This unfolds many ugly hidden things. Lara and Kiara, Amelia's sisters are also bent on ruining each other's lives.
Excerpt
"What?", Amelia screamed, " why did you take them out without asking me first? You were not meant to take them out! Now please take them back home before my husband finds out"
Mrs. Beverly paused for a while, "Okay", and she hung up. She sighted Max from afar, " Max!". Then she saw the old friend, the one she was talking to before Amelia called, "I'm sorry but I have to go now, it's urgent".
" it's OK, Lara. i hope to see you again soon", her friend waved goodbye. in less than a minute, Max was by her side.
"Where's Stephanie? We have to go now", Mrs. Beverly said and she started rummaging through her bag for her car keys.
" I thought she was with you...